(shape in lathe)
41Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …
42turn — turnable, adj. /terrn/, v.t. 1. to cause to move around on an axis or about a center; rotate: to turn a wheel. 2. to cause to move around or partly around, as for the purpose of opening, closing, or tightening: to turn a key; to turn the cap of a …
43Grinding (abrasive cutting) — Sketch of how abrasive particles in a grinding wheel remove material from a workpiece. Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. A wide variety of machines are used for grinding: Hand cranked knife… …
44Contact lens — Contacts redirects here. For the software application, see Address book. A pair of contact lenses, positioned with the concave side facing upward …
45Saw — For other uses, see Saw (disambiguation). Saw A crosscut hand saw about 620 mm (24 inches) long Classification Cutting Types Hand saw Back saw Bow saw Circular saw …
46Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center …
47Electrical discharge machining — An electrical discharge machine Electric discharge machining (EDM), sometimes colloquially also referred to as spark machining, spark eroding, burning, die sinking or wire erosion,[1] is a manufacturing process whereby a desired shape is obtained …
48turn — [[t]tɜrn[/t]] v. t. 1) to cause to move around on an axis or about a center; rotate: to turn a wheel[/ex] 2) to cause to move around or partly around, as for the purpose of opening, closing, or tightening: to turn a key[/ex] 3) to reverse the… …
49Machete — For other uses, see Machete (disambiguation). Older machete from Latin America The machete (   …
50Tool — For other uses, see Tool (disambiguation). A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process… …
