taper screw thread
31Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …
32Counterbore — A counterbore in a metal plate A counterbore can refer to a cylindrical flat bottomed hole, which enlarges another hole, or the tool used to create that feature. A spot face is a very shallow counterbore. A counterbore hole is used when a… …
33Chisel — This article is about the tool. For the American band, see Chisel (band). For the album by Australian band Cold Chisel, see Chisel (album). Steel woodworking chisel …
34Timeline of Russian inventions and technology records — The Hall of Space Technology in the Tsiolkovsky State Museum of the History of Cosmonautics, Kaluga, Russia. The exhibition includes the models and replicas of the following Russian inventions: the first satellite, Sputnik 1 (a ball under the… …
35Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …
36Die head — with various chasers A die head is a threadi …
37Tape measure — plastic tape measure (metric) Self retracting tape measure (imperial) …
38Pliers — For the Jamaican singer, see Pliers (singer). Flat nose pliers Pliers are a hand tool used to hold objects firmly, for bending, or physical compression. Generally, pliers consist of a pair of metal first class levers joined at a fulcrum pos …
39Clinker (boat building) — A Viking longship, displaying the overlapping planks that characterize clinker construction. Clinker building is a method of constructing hulls of boats and ships by fixing wooden planks and, in the early nineteenth century, iron plates to each… …
40Ruler — For other uses, see Ruler (disambiguation). A variety of rulers A 2 meter …
