conical pin
71Rimfire ammunition — A rimfire is a type of firearm cartridge. It is called a rimfire because instead of the firing pin striking the primer cap at the center of the base of the cartridge to ignite it (as in a centerfire cartridge), the pin strikes the base s rim. The …
72small arm — small armed, adj. Usually, small arms. a firearm designed to be held in one or both hands while being fired: in the U.S. the term is applied to weapons of a caliber of up to one in. (2.5 cm). [1680 90] * * * ▪ military technology Introduction… …
73Swaging — (  /ˈsweɪ …
74Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …
75Zipper — A zipper (English: zip fastener or zip) is a popular device for temporarily joining two edges of fabric. It is used in clothing (e.g. jackets and jeans), luggage and other bags, sporting goods, camping gear (e.g., tents and sleeping bags), and… …
76Splitting maul — Woodsplitting maul Other names Wood maul Wood mall Block Buster (Typically used throughout Australia and New Zealand) Classification Hand tool Related Sledge hammer …
77Jarlshof — is the best known prehistoric archaeological site in Shetland, Scotland. It lies near the southern tip of the Shetland Mainland and has been described as one of the most remarkable archaeological sites ever excavated in the British Isles . [… …
78Wire wrapped jewelry — Wire wrapping is one of the oldest techniques for making jewelry by hand. In wire wrapping, jewelry is made using jewelry wire and findings similar to wire (like head pins) to make components. Wire components are then connected to one another… …
79Sodium silicate — E550 redirects here. For the Italian locomotive, see FS Class E550 Sodium silicate …
80Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… …
