concrete plant for sale in ghana

Online message

Grinding Mills - Common Types - 911 Metallurgist

07/11/2016  Common Types of Grinding Mills appears to be: Ball mills. Tube mills. Rod mills. Ρebble mills.07/11/2016  Common Types of Grinding Mills appears to be: Ball mills. Tube mills. Rod mills. Ρebble mills.

Grinding Mills and Their Types – IspatGuru

09/04/2015  Ball mill is a versatile grinding mill and has a wide range of applications. The mill can vary in size from small batch mills up to mills with outputs of hundreds of tons per hour. They are the most widely used of all mills. Roller mills. Roller mills are basically of two distinct types. The first has a series of rollers which rotate around a central axis within a drum. The reduction takes ...09/04/2015  Ball mill is a versatile grinding mill and has a wide range of applications. The mill can vary in size from small batch mills up to mills with outputs of hundreds of tons per hour. They are the most widely used of all mills. Roller mills. Roller mills are basically of two distinct types. The first has a series of rollers which rotate around a central axis within a drum. The reduction takes ...

What are the Different Types of Ball Mills?

Horizontal Ball Mill: The most common type of product supplied by ball mill manufacturers of India is the horizontal ball mill. As the name suggests, it comes in a leaner and longer form than vertical ball mills. Though the specifications of their structure and features may vary for every industry, they are basically shaped like a cylinder with a drum inside its chamber. The self-same drum is filled with Horizontal Ball Mill: The most common type of product supplied by ball mill manufacturers of India is the horizontal ball mill. As the name suggests, it comes in a leaner and longer form than vertical ball mills. Though the specifications of their structure and features may vary for every industry, they are basically shaped like a cylinder with a drum inside its chamber. The self-same drum is filled with

End mills - SCHNEEBERGER

Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...

Different Types of Ball Mills - SlideShare

25/08/2014  Ball mill machine is suitable for grinding all kinds of ores and other materials, so it is widely used in mineral dressing, building materials and chemical industries. According to the different ore discharging ways, ball mills can be divided into grid and overflow types.25/08/2014  Ball mill machine is suitable for grinding all kinds of ores and other materials, so it is widely used in mineral dressing, building materials and chemical industries. According to the different ore discharging ways, ball mills can be divided into grid and overflow types.

Endmill Design Basics – Mastercut Tool Corp

Dish Angle – The angle formed by the end cutting edge and a plane perpendicular to the cutter axis. Dish ensures that a flat surface is produced by the cutter. Entrance Angle – The angle formed by a line through the center of the cutter at 90 to the direction of feed and a Dish Angle – The angle formed by the end cutting edge and a plane perpendicular to the cutter axis. Dish ensures that a flat surface is produced by the cutter. Entrance Angle – The angle formed by a line through the center of the cutter at 90 to the direction of feed and a

Technical Info - Melin Tool Company

Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...

Endmill Design Basics – Mastercut Tool Corp

Convex – An outward projection radius feature on the end face of a ball mill. Core Diameter – The diameter of a cylinder (or cone shape with tapered Endmills) tangent to the flutes at the deepest point. Counterbore – A recess in a non-end cutting tool to facilitate grinding. Cutter Sweep (Runout) – Tool material removed by the fluting cutter (or grinding wheel) at the end of the flute ...Convex – An outward projection radius feature on the end face of a ball mill. Core Diameter – The diameter of a cylinder (or cone shape with tapered Endmills) tangent to the flutes at the deepest point. Counterbore – A recess in a non-end cutting tool to facilitate grinding. Cutter Sweep (Runout) – Tool material removed by the fluting cutter (or grinding wheel) at the end of the flute ...

Principles of Grinding in Ball Mills Orbis Machinery, LLC.

26/10/2018  This angle of break is also determinate upon the size of the mill. Since grinding actions in a larger mill are more severe than that of a smaller mill, the angle of break should be lower for the larger Mills than the smaller. Media and Product Loading . For best results, the Mill should be filled half full with grinding media. While some ...26/10/2018  This angle of break is also determinate upon the size of the mill. Since grinding actions in a larger mill are more severe than that of a smaller mill, the angle of break should be lower for the larger Mills than the smaller. Media and Product Loading . For best results, the Mill should be filled half full with grinding media. While some ...

End mills - SCHNEEBERGER

Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...

Different Types of Ball Mills - SlideShare

25/08/2014  Ball mill machine is suitable for grinding all kinds of ores and other materials, so it is widely used in mineral dressing, building materials and chemical industries. According to the different ore discharging ways, ball mills can be divided into grid and overflow types.25/08/2014  Ball mill machine is suitable for grinding all kinds of ores and other materials, so it is widely used in mineral dressing, building materials and chemical industries. According to the different ore discharging ways, ball mills can be divided into grid and overflow types.

Technical Info - Melin Tool Company

Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...

Autogenous and Semi-Autogenous Mills - ScienceDirect

01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...

7 Types of Angle Grinder Discs and Their Uses -

10/09/2020  7 Types of Angle Grinder Discs. Without further ado, let’s take a look at each of the types in detail. Grinding Wheel. As you can imagine, the first and most obvious angle grinder disc type is the eponymous grinding wheel. These wheels are disc-shaped in nature and often feature a ribbed edge that is optimized for removing rough metal edges at a rapid pace. To that end, these wheels are used ...10/09/2020  7 Types of Angle Grinder Discs. Without further ado, let’s take a look at each of the types in detail. Grinding Wheel. As you can imagine, the first and most obvious angle grinder disc type is the eponymous grinding wheel. These wheels are disc-shaped in nature and often feature a ribbed edge that is optimized for removing rough metal edges at a rapid pace. To that end, these wheels are used ...

Optimization of mill performance by using

of the procedure: grind-out, mill stoppage, mill start-up and the transition period to steady state. Stresses, generated in the ball charge, increase, which may result in spalling of balls and blocking the grate discharge. Optimization of mill performance by using online ball and pulp measurements by B. Clermont* and B. de Haas* Synopsisof the procedure: grind-out, mill stoppage, mill start-up and the transition period to steady state. Stresses, generated in the ball charge, increase, which may result in spalling of balls and blocking the grate discharge. Optimization of mill performance by using online ball and pulp measurements by B. Clermont* and B. de Haas* Synopsis

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL

grinding. Ball size distribution inside an industrial mill was analysed in terms of shapes and sizes. Load behaviour, mill power and breakage as affected by media shapes were studied in a pilot laboratory mill. An inductive proximity probe, light emitting diode, phototransistor and video photographs were used to determine the load orientation in terms of toe and shoulder positions. A load beam ...grinding. Ball size distribution inside an industrial mill was analysed in terms of shapes and sizes. Load behaviour, mill power and breakage as affected by media shapes were studied in a pilot laboratory mill. An inductive proximity probe, light emitting diode, phototransistor and video photographs were used to determine the load orientation in terms of toe and shoulder positions. A load beam ...

The Selection and Design of Mill Liners - MillTraj

An overview is given of the principal types and materials of construction of mill liners. Examples of good and bad liner design are given, followed by a rigorous approach to liner design based on the best technology available, combined with experience and logical engineering thinking. Methods of monitoring the progressive wear of liners, and relating this to the performance of the mill are ...An overview is given of the principal types and materials of construction of mill liners. Examples of good and bad liner design are given, followed by a rigorous approach to liner design based on the best technology available, combined with experience and logical engineering thinking. Methods of monitoring the progressive wear of liners, and relating this to the performance of the mill are ...

End mills - SCHNEEBERGER

Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...Ball nose end mill. The combination of end face angle, face clearancee and width enables a perfect seamless blend of the two center cutting wings to create the perfect ball shape. In addition, there are also different gashing types up toand including a S-shaped end configuration. Sinus-edge cutter / ctest cut. Flutes and contours are wave formed with a constant cutting and clearance angle ...

Types of Ball Mill Machine Meet Your Industrial Grinding ...

As a professional ball mill machine manufacturer and supplier, we can provide types of ball mill according to customer’s requirements. According to production mode: dry ball mill (without adding water) and wet ball mill. According to the process used: dryer mill, superfine ball mill, open-circuit mill, closed-circuit grinding mill, etc. According to raw materials: raw mill, cement ball mill ...As a professional ball mill machine manufacturer and supplier, we can provide types of ball mill according to customer’s requirements. According to production mode: dry ball mill (without adding water) and wet ball mill. According to the process used: dryer mill, superfine ball mill, open-circuit mill, closed-circuit grinding mill, etc. According to raw materials: raw mill, cement ball mill ...

What are the Differences Between Dry and Wet Type

10/03/2021  1 The dry ball mill adopts the slab-type grinding tail discharge, the discharging speed is fast and the process is unhindered, which will not be bloating. The cylinder does not need to be cooled with the service life is long. 2 The dry ball mill has many auxiliary types of equipment, which changes the structure of the original mill and make the engine body and the underframe integrated. It can ...10/03/2021  1 The dry ball mill adopts the slab-type grinding tail discharge, the discharging speed is fast and the process is unhindered, which will not be bloating. The cylinder does not need to be cooled with the service life is long. 2 The dry ball mill has many auxiliary types of equipment, which changes the structure of the original mill and make the engine body and the underframe integrated. It can ...

Technical Info - Melin Tool Company

Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...

Practical 1 : Ball Milling TF Lab 1

23/12/2013  A ball mill is a type of grinder which consists of a cylinder. It is used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. The cylinder rotates around a horizontal axis. It is partially filled with the grinding medium and the material to be ground. Materials which can be used as media are ceramic balls, pebbles and stainless steel balls. Large to medium ...23/12/2013  A ball mill is a type of grinder which consists of a cylinder. It is used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. The cylinder rotates around a horizontal axis. It is partially filled with the grinding medium and the material to be ground. Materials which can be used as media are ceramic balls, pebbles and stainless steel balls. Large to medium ...

7 Types of Angle Grinder Discs and Their Uses -

10/09/2020  7 Types of Angle Grinder Discs Grinding Wheel. As you can imagine, the first and most obvious angle grinder disc type is the eponymous grinding wheel. Flap Disc. Grinding wheels are considered a rather “blunt” method of smoothing down a rough metal surface. As such, they... Cut-off Wheel. As you ...10/09/2020  7 Types of Angle Grinder Discs Grinding Wheel. As you can imagine, the first and most obvious angle grinder disc type is the eponymous grinding wheel. Flap Disc. Grinding wheels are considered a rather “blunt” method of smoothing down a rough metal surface. As such, they... Cut-off Wheel. As you ...

Autogenous and Semi-Autogenous Mills - ScienceDirect

01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...

Basic Introduction of Various Types of Milling Cutters ...

10/10/2017  Types of Milling Cutters: 1.End mill:. It has both side teeth so it can be very successfully used in drilling operation. The word “end mill” is... 2.Roughing end mill:. Roughing end mills are also knows as “rippa” cutters. This cutters gives superlative performance... 3.Ball nose cutters:. Ball Nose ...10/10/2017  Types of Milling Cutters: 1.End mill:. It has both side teeth so it can be very successfully used in drilling operation. The word “end mill” is... 2.Roughing end mill:. Roughing end mills are also knows as “rippa” cutters. This cutters gives superlative performance... 3.Ball nose cutters:. Ball Nose ...

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL

grinding. Ball size distribution inside an industrial mill was analysed in terms of shapes and sizes. Load behaviour, mill power and breakage as affected by media shapes were studied in a pilot laboratory mill. An inductive proximity probe, light emitting diode, phototransistor and video photographs were used to determine the load orientation in terms of toe and shoulder positions. A load beam ...grinding. Ball size distribution inside an industrial mill was analysed in terms of shapes and sizes. Load behaviour, mill power and breakage as affected by media shapes were studied in a pilot laboratory mill. An inductive proximity probe, light emitting diode, phototransistor and video photographs were used to determine the load orientation in terms of toe and shoulder positions. A load beam ...

Choosing Ball Milling Media for Firework Chemical Milling ...

15/02/2018  This article on choosing milling media for a ball mill by Ned Gorski is a side article that goes with the "Ball Milling 101" article. Milling Media Cautions . In his book Ball Milling Theory and Practice for the Amateur Pyrotechnician, Lloyd includes a section on casting your own lead media. Some folks melt used lead automobile wheel weights or hardened linotype as the raw material for casting ...15/02/2018  This article on choosing milling media for a ball mill by Ned Gorski is a side article that goes with the "Ball Milling 101" article. Milling Media Cautions . In his book Ball Milling Theory and Practice for the Amateur Pyrotechnician, Lloyd includes a section on casting your own lead media. Some folks melt used lead automobile wheel weights or hardened linotype as the raw material for casting ...

Types of Ball Mill Machine Meet Your Industrial Grinding ...

As a professional ball mill machine manufacturer and supplier, we can provide types of ball mill according to customer’s requirements. According to production mode: dry ball mill (without adding water) and wet ball mill. According to the process used: dryer mill, superfine ball mill, open-circuit mill, closed-circuit grinding mill, etc. According to raw materials: raw mill, cement ball mill ...As a professional ball mill machine manufacturer and supplier, we can provide types of ball mill according to customer’s requirements. According to production mode: dry ball mill (without adding water) and wet ball mill. According to the process used: dryer mill, superfine ball mill, open-circuit mill, closed-circuit grinding mill, etc. According to raw materials: raw mill, cement ball mill ...

Technical Info - Melin Tool Company

Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...Ball End- Used to mill die cavities and fillets, ... Counterbore- A recess in a non-end cutting tool to facilitate grinding. Clearance- Space created by the removal of additional tool material from behind the relief angle. Clearance Angle- The angle formed by the cleared surface and line tangent to the cutting edge. Clearance: Primary(1st angle, 5°-9°) - Relief adjacent to the cutting edge ...

Autogenous and Semi-Autogenous Mills - ScienceDirect

01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...01/01/2016  A typical SAG-HPGR-Ball mill circuit suggested by Patzelt et al. is ... considered both low aspect and high aspect types of autogenous grinding mills and arrived at a general expression for mill power that is applicable to both types. Austin considered the mill power as the sum of the power required by the central cylindrical portion and that required by the two end cones. The mill power for ...

Ball Mills Industry Grinder for Mineral Processing ...

【Ball mill working principle】 High energy ball milling is a type of powder grinding mill used to grind ores and other materials to 25 mesh or extremely fine powders, mainly used in the mineral processing industry, both in open or closed circuits. Ball milling is a grinding method that reduces the product into a controlled final grind and a uniform size, usually, the manganese, iron, steel ...【Ball mill working principle】 High energy ball milling is a type of powder grinding mill used to grind ores and other materials to 25 mesh or extremely fine powders, mainly used in the mineral processing industry, both in open or closed circuits. Ball milling is a grinding method that reduces the product into a controlled final grind and a uniform size, usually, the manganese, iron, steel ...

Practical 1 : Ball Milling TF Lab 1

23/12/2013  A ball mill is a type of grinder which consists of a cylinder. It is used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. The cylinder rotates around a horizontal axis. It is partially filled with the grinding medium and the material to be ground. Materials which can be used as media are ceramic balls, pebbles and stainless steel balls. Large to medium ...23/12/2013  A ball mill is a type of grinder which consists of a cylinder. It is used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints. The cylinder rotates around a horizontal axis. It is partially filled with the grinding medium and the material to be ground. Materials which can be used as media are ceramic balls, pebbles and stainless steel balls. Large to medium ...

Grinding Machine: Types, Parts, Working Operations

Working principle of Grinding Machine: The working principle of a grinding machine is quite easier to understand.. In a grinding machine, there is an electric motor which supplies the motion power to the grinding wheel with the help of a belt and pulley.. So when we start the electric motor the motor rotates at a certain rpm (150-15000 RPM, it may change according to the types of grinding ...Working principle of Grinding Machine: The working principle of a grinding machine is quite easier to understand.. In a grinding machine, there is an electric motor which supplies the motion power to the grinding wheel with the help of a belt and pulley.. So when we start the electric motor the motor rotates at a certain rpm (150-15000 RPM, it may change according to the types of grinding ...

Laboratory Ball Mills Ring Mills Compare Review Quote

Universal Cutting Mills - PULVERISETTE 19. Mixer Mill for Rapid Pulverization and Long-Term Grinding Down to the Nanometer Range. Ultra Centrifugal Mill ZM 200 from RETSCH. Cryogenic Dry And Wet Grinding Of Small Samples - The Mixer Mill MM 400. CryoMill for Cryogenic Grinding Operations from RETSCH. Vibratory Sieve Shaker AS 200 Control ...Universal Cutting Mills - PULVERISETTE 19. Mixer Mill for Rapid Pulverization and Long-Term Grinding Down to the Nanometer Range. Ultra Centrifugal Mill ZM 200 from RETSCH. Cryogenic Dry And Wet Grinding Of Small Samples - The Mixer Mill MM 400. CryoMill for Cryogenic Grinding Operations from RETSCH. Vibratory Sieve Shaker AS 200 Control ...

Grinding Media - Milling Balls - Ceramic Grinding Media ...

Grinding Media Grinding media are the means used to crush or grind material in a mill. It comes in different forms such as alumina oxide balls, ceramic cylinders, or soda lime glass. At Norstone Inc., we offer all types of medias used for grinding, deagglomeration, polishing, deburring, fillers, proppants, spacers, refractory beds and shot peening.Grinding Media Grinding media are the means used to crush or grind material in a mill. It comes in different forms such as alumina oxide balls, ceramic cylinders, or soda lime glass. At Norstone Inc., we offer all types of medias used for grinding, deagglomeration, polishing, deburring, fillers, proppants, spacers, refractory beds and shot peening.

Choosing Ball Milling Media for Firework Chemical Milling ...

15/02/2018  This article on choosing milling media for a ball mill by Ned Gorski is a side article that goes with the "Ball Milling 101" article. Milling Media Cautions . In his book Ball Milling Theory and Practice for the Amateur Pyrotechnician, Lloyd includes a section on casting your own lead media. Some folks melt used lead automobile wheel weights or hardened linotype as the raw material for casting ...15/02/2018  This article on choosing milling media for a ball mill by Ned Gorski is a side article that goes with the "Ball Milling 101" article. Milling Media Cautions . In his book Ball Milling Theory and Practice for the Amateur Pyrotechnician, Lloyd includes a section on casting your own lead media. Some folks melt used lead automobile wheel weights or hardened linotype as the raw material for casting ...

TYPES OF GRINDING WHEELS

Type 6. It is used for grinding flat surfaces with the help of face of grinding wheel. Type 7 used in grinding of tools in tool room. Type 8. It is used for sharpening of circular or band saw. Type 9. These are normally on vertical spindle, rotary type and reciprocating type surface grinders Type 10. It is also used for grinding of tools in tool room. It is capable to grind very narrow places ...Type 6. It is used for grinding flat surfaces with the help of face of grinding wheel. Type 7 used in grinding of tools in tool room. Type 8. It is used for sharpening of circular or band saw. Type 9. These are normally on vertical spindle, rotary type and reciprocating type surface grinders Type 10. It is also used for grinding of tools in tool room. It is capable to grind very narrow places ...