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A set of metric spanners or wrenches, open at one end and box/ring at the other. These are commonly known as “combination” spanners. A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning.
An adjustable spanner (UK and most other English-speaking countries), also called a shifting spanner (Australia and New Zealand) [1] or adjustable wrench (US and Canada), [a] is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
Campagnolo crank spanner, used to tighten or loosen the bolt (15 mm) which holds the crank to the bottom bracket spindle. Length is 17 cm. A peanut butter wrench, also known as a crank bolt spanner or a crank spanner, is a single-ended box wrench or ring spanner used in cycling to tighten older 14 mm and 15 mm crank bolts, or the wheel nuts (track nuts) on hubs with solid axles commonly found ...
Some screwdrivers have a short hexagonal section at the top of the blade, adjacent to the handle, so that a ring spanner or open wrench can be used to increase the applied torque. Another option are "cabinet" screwdrivers which are made of flat bar stock and while the shaft may be rounded, will have a large flat section adjacent to the handle ...
1938, the company patented the world's first click-type torque wrench. 1939, the first torque screwdriver was patented. 1949, the company patented a ring-ratchet system with interchangeable tool inserts. 1953, a design patent was registered for the multifunctional "3=1" combined open-jaw and joint-socket spanner. Saltus in former times
In 1882, James Harvey Williams and Matthew Diamond founded Williams & Diamond in Flushing, Queens, a drop forging business. [2] The business was relocated to Brooklyn in 1884 and took the name J.H. Williams & Co in 1887.