pitch diameter
81Tap and die — Not to be confused with Tool and die. Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the… …
82Coil binding — For the term as used in auto racing, see coil bind. Coil Binding Binding Machine Coil binding, also known as spiral binding, is a commonly used book binding style for …
83golf — golfer, n. /golf, gawlf/; Brit. also /gof/, n. 1. a game in which clubs with wooden or metal heads are used to hit a small, white ball into a number of holes, usually 9 or 18, in succession, situated at various distances over a course having… …
84percussion instrument — a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments. [1870 75] * * * A musical instrument that is struck (or sometimes shaken or scraped) to …
85Types of trombone — There are many different types of trombone. The most frequently encountered trombones today are the tenor and bass, though as with other Renaissance instruments such as the recorder, the trombone has been built in every size from piccolo to… …
86Bass drum — The drum kit …
87Stairway — Stairs redirects here. For other uses, see Stairs (disambiguation). Staircase redirects here. For other uses, see Staircase (disambiguation). This article is about the construction. For the song by Led Zeppelin, see Stairway to Heaven. Stairways… …
88jet engine — an engine, as an aircraft engine, that produces forward motion by the rearward exhaust of a jet of fluid or heated air and gases. Also called jet, jet motor. [1940 45] * * * Any of a class of internal combustion engines that propel aircraft by… …
89Crankset — A Shimano Deore right crankset, showing crank arm, spider, three chainrings and chainring guard …
90Little League Baseball — is the name of a non profit organization in the United States which organizes local children s leagues of baseball and softball throughout the USA and the rest of the world.The Little League was founded by Carl Stotz in 1939 as a three team… …
