The cut off piece of hex key must be square to use as a broach. Run the hex-key broach into the workpiece to produce a hexsocket pattern. A finished lefthand 1/4-20 screw with custom head made using ...
A good collection of sockets makes it easy to loosen or tighten nuts and bolts of any size; a great collection brings the convenience of ratcheting sockets to socket head cap screws, better known as ...
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