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British Standard Brass or British Brass Thread is an imperial unit based screw thread. It adopts the Whitworth thread form with a pitch of 26 threads per inch and a thread angle of 55 degrees for all diameters. [1] It is often wrongly called British Standard Brass but is not actually covered by a British Standard.
Ammunition for the original low-angle guns introduced in World War I was Separate QF i.e. the shell and cartridge were separate items, but in World War II most guns used Fixed QF ammunition i.e. a single unit. The fixed Mk V ammunition was 44.3 inches (1.13 m) long and weighed 56 pounds (25 kg), while the projectile was 31 pounds (14 kg).
Detail of a double-cut flat file showing cutting surfaces on both wide and narrow faces. A file is a tool used to remove fine amounts of material from a workpiece. It is common in woodworking, metalworking, and other similar trade and hobby tasks.
T bevel with protractor and dividers In use. A sliding T bevel, also known as a bevel gauge or false square [1] is an adjustable gauge for setting and transferring angles. . Different from the square, which is fixed and can only set a 90° angle, the sliding T bevel can set any angle and transfer it on anoth
Speed square, or rafter square, or rafter angle square, or triangle square, or layout square A speed square is a triangular carpenters square combining functions of the combination square, try square, and framing square into one. It can be used to calculate and mark angles, to suspend a plumb bob, and as a fence for a circular saw. [21] [22] [23]
The inside of the wooden stock usually has a brass strip fixed to it to reduce wear. [7] [4] On some squares the top of the stock is angled at 45°, so the square can be used as a mitre square for marking and checking 45° angles. A similar type of square is the engineer's square, used in metalworking and by some woodworkers. The blade is made ...
Cast brass model components on a sprue Brass models are scale models typically of railroad equipment, bridges and occasionally of buildings, made from brass or similar alloys . Although die-cast or plastic models have made considerable advances in late 1990s and continue to improve, brass models offer finer details.
A fireman turning a bar of metal on a lathe on the USS Harry S. Truman in 2004. Metalworking is the process of shaping and reshaping metals in order to create useful objects, parts, assemblies, and large scale structures.