Rolson 40345 Hex Key, 30 Pieces

A Hex key, Allen key or Allen wrench is a tool with a hexagonal cross section used to drive bolts and screws that have a hexagonal socket in the head. This tool is simple, small and lightweight. Either end of the tool can be used to gain an advantage through reach or to gain torque. Hex keys come in lots of different sizes and using a hex wrench on a socket that is too large may result in damag...