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2. Jig grinder - Wikipedia

   en.wikipedia.org/wiki/Jig_grinder

   A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required. The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe). It is used almost exclusively by tool and die ...

3. Sharpening jig - Wikipedia

   en.wikipedia.org/wiki/Sharpening_jig

   These types of jigs are usually used with a sharpening stone or plate, such as a waterstone, oilstone or diamond abrasive surface. Other types of jigs are used to present the blade to the wheel of a grinder. There are generally two types of hand sharpening jigs, push jigs and side-to-side jigs. Push jigs run perpendicular to the length of the ...

4. Jig (tool) - Wikipedia

   en.wikipedia.org/wiki/Jig_(tool)

   Drill jigs started falling into disuse with the invention of the jig borer. Since the widespread penetration of the manufacturing industry by CNC machine tools , in which servo controls are capable of moving the tool to the correct location automatically, the need for drill jigs (and for the jobs of the drill press operators who used them) is ...

5. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   Tool and cutter grinder, which usually can perform the minor function of the drill bit grinder or other specialist toolroom grinding operations. Jig grinder, which as the name implies, has a variety of uses when finishing jigs, dies, and fixtures. Its primary function is in the realm of grinding holes for drill bushings and grinding pins. It ...

6. Sharpening - Wikipedia

   en.wikipedia.org/wiki/Sharpening

   Drill bits - twist drills used for wood or steel are usually sharpened on a grinding wheel or within a purpose made grinding jig to an angle of 60° from vertical (120° total) although sharper angles may be used for hard or brittle materials such as glass.

7. Tool and cutter grinder - Wikipedia

   en.wikipedia.org/wiki/Tool_and_cutter_grinder

   View of a typical setup on a T&C grinder. A Tool and Cutter Grinder is used to sharpen milling cutters and tool bits along with a host of other cutting tools.. It is an extremely versatile machine used to perform a variety of grinding operations: surface, cylindrical, or complex shapes.