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2. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   It can also be used to make and sharpen metal stamping die sets, flat shear blades, fixture bases or any flat and parallel surfaces. Surface grinders can be manually operated or have CNC controls. Tool and cutter grinder, which usually can perform the minor function of the drill bit grinder or other specialist toolroom grinding operations.

3. Pencil sharpener - Wikipedia

   en.wikipedia.org/wiki/Pencil_sharpener

   A manual prism sharpener generates long fan-shaped shavings Video of a mechanical pencil sharpener, showing gearing and helical sharpening blades video showing a manual prism sharpener A pencil sharpener (or pencil pointer , or in Ireland a parer or topper [ 1 ] ) is a tool for sharpening a pencil 's writing point by shaving away its worn surface.

4. Mechanical pencil - Wikipedia

   en.wikipedia.org/wiki/Mechanical_pencil

   A mechanical pencil or clutch pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" / ˈ l ɛ d /. The lead , often made of graphite , is not bonded to the outer casing, and the user can mechanically extend it as its point is worn away from use.

5. 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.

6. Machine tool - Wikipedia

   en.wikipedia.org/wiki/Machine_tool

   The mechanical toolpath guidance grew out of various root concepts: First is the spindle concept itself, which constrains workpiece or tool movement to rotation around a fixed axis . This ancient concept predates machine tools per se; the earliest lathes and potter's wheels incorporated it for the workpiece, but the movement of the tool itself ...

7. Rotary tool - Wikipedia

   en.wikipedia.org/wiki/Rotary_tool

   A pneumatic die grinder with a right-angle head. A cordless battery-powered rotary tool used for light tasks. A die grinder or rotary tool is a handheld power tool and multitool used for grinding, sanding, honing, polishing, or machining material (typically metal, but also plastic or wood).