Grinding - 10: Bench Grinder
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WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.
The bench grinder (figure 1) or is found in every shop It is used for rough work and to grind tool bits made from high speed steel and carbide. Tool bit grinding is a standard skill expected of all journeyman machinists. Drill sharpening attachments are sometimes used on bench grinders (figure 2).

Some bench grinders have attachments for a special grinding processes like the wet grinder. The wet grinding wheel turns very slowly through a bath of oil or water. This type is suitable for blade sharpening. (figure 3)

Another special bench grinder is the cutter grinder used for more precise hand tool work.  Diamond face wheels are sometimes attached for harder materials like carbide and ceramic. (figure 4)

Figure 1
Figure 2
Figure 3
Figure 4
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label: grinding, grinders, grinding whees, ID, OD, Universal, tool and cutter, surface grinder, feeding, coolant, centerless. lapping, polishing