1. Modern power tools, automated machine tools, and human-operated power machinery are tools that also machines.
2. The metal that cuts another metal must be very hard and so tools be made of very hard steel alloys.
3.The cutter is mounted on an arbor, and held in the desired position by spacing washers and a nut.
4. A multiple-spindle machine can perform a number of operations on a component without the necessity of changing tools or the component from the jig.
5. To sharpen the teeth of a plain milling cutter, the cutter is generally mounted on a lathe mandrel and supported between centers or the cutter is on a special stub arbor and held in a universal swivel fixture.
6. The broaching tool is based on a concept unique to the process - rough, semi-finish, and finish cutting teeth combined in one or string of tools.
7. The broach is free to rotate within the tool holder, but the axis of rotation is inclined slightly to the of rotation of the work.
8. A drill press is a fixed style of drill that may be mounted on a stand or bolted to the floor or workbench. It is also known pedestal drill, pillar drill, or bench drill.
9. Cutting fluid may also be pumped to the cutting site to cooling, lubrication and clearing of swarf from the work piece.
10. For a tooth profile which is a theoretical involute, the fundamental rack is straight-sided, with sides inclined at the pressure of the tooth form, with flat top and bottom.