How To Use An Allen Wrench The Right Way
Allen wrenches are vital to any handyman's toolkit. They are formed from hexagonal-shaped steel rods bent 90 degrees at one ...
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Why Do We Call It an “Allen Wrench”?
Most people have encountered an Allen wrench (or Allen key). It’s the L- or S-shaped tool with a six-sided head that can easily be gripped between your thumb and forefinger to assemble ...