When a nut or a bolt head is in a recess below the surface of a bolted member, a socket wrench must be used; this is essentially a short pipe with a square or hexagonal hole and either an integral or a removable handle. Modern socket wrenches are made in sets, consisting of a number of short sockets with a square hole in one end that fits a removable handle and 8- or 12-point holes in the other end to fit various bolt and nut sizes. There are several types of handles and extensions, such as a T handle, screwdriver-grip handle, and a ratchet handle (see ratchet).
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Strong compact lightweight and forceful this 20-Volt cordless Strong compact lightweight and forceful this 20-Volt cordless impact wrench fits into tight spaces and delivers a robust 1560 in. lbs. of maximum torque to power through tough fastening jobs on masonry metal and wood. Get huge savings with this package that includes two 20-Volt lithium-ion batteries (4Ah) charger and ...  More + Product Details Close