Screws and bolts come in different sizes, so you need different-sized hex and Torx wrenches for tightening and loosening the screws. The Ronix RH-2051 Hex and Torx Wrench Set is a small, lightweight, and convenient set of 18 different sizes of hex and Torx wrenches. This practical set is made from the highest quality raw materials, with a compact design for convenience. The finest raw materials are used to make this amazing hex and Torx wrench set. Heat-treated chrome vanadium steel ensures the strength and durability of the tool. In addition, the aluminum body makes the RH-2051 a very lightweight set with a rustproof chrome coating to protect the wrenches from corrosion. The Ronix RH-2051 short arm Hex and Torx Key Set has hardened ends to provide the user with very high torque during operation. These ends are cut square for a secure fit and maximum contact with the hex socket to prevent slippage and fraying of the socket.