Most mechanic’s tool sets don’t include typical home-improvement items like tape measures, pliers, cutting knives, or ...

An Allen wrench, AKA an Allen key or hex key, is a small hand tool used to fasten screws or bolts with a hexagonal socket.

Inside virtually every ready-to-assemble product requiring screws is a complementary Allen wrench, a compact hexagonal tool that can quickly twist and secure fasteners for bookshelves, tables ...