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2. Bench grinder - Wikipedia

   en.wikipedia.org/wiki/Bench_grinder

   A pedestal grinder is a similar or larger version of grinder that is mounted on a pedestal, which may be bolted to the floor or may sit on rubber feet. These types of grinders are commonly used to hand grind various cutting tools and perform other rough grinding. [1] Depending on the bond and grade of the grinding wheel, it may be used for ...

3. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   Its uses include shaping tool bits or various tools that need to be made or repaired. Bench grinders are manually operated. Cylindrical grinder, which includes both the types that use centers and the centerless types. A cylindrical grinder may have multiple grinding wheels. The work piece is rotated and fed past the wheel(s) to form a cylinder.

4. Grinding (abrasive cutting) - Wikipedia

   en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

   A man grinding on metal using an angle grinder, causing a lot of sparks. Grinding is a type of abrasive machining process which uses a grinding wheel as cutting tool. A wide variety of machines are used for grinding, best classified as portable or stationary: Portable power tools such as angle grinders, die grinders and cut-off saws

5. Angle grinder - Wikipedia

   en.wikipedia.org/wiki/Angle_grinder

   Angle grinder. An angle grinder, also known as a side grinder or disc grinder, is a handheld power tool used for grinding (abrasive cutting) and polishing.Although developed originally as tools for rigid abrasive discs, the availability of an interchangeable power source has encouraged their use with a wide variety of cutters and attachments.

6. Surface grinding - Wikipedia

   en.wikipedia.org/wiki/Surface_grinding

   A surface grinder is a machine tool used to provide precision ground surfaces, either to a critical size or for the surface finish. The typical precision of a surface grinder depends on the type and usage, however ±0.002 mm (±0.0001 in) should be achievable on most surface grinders.

7. Drill - Wikipedia

   en.wikipedia.org/wiki/Drill

   Modern drill presses can, however, use a variable-speed motor in conjunction with the stepped-pulley system. Medium-duty drill presses such as those used in machine shop (tool room) applications are equipped with a continuously variable transmission. This mechanism is based on variable-diameter pulleys driving a wide, heavy-duty belt.