Get ultimate versatility in a compact package. These exclusive drivers ensure that 1/4" and 5/16" hex sizes are always on hand for installation, with an integrated sawtooth design that cuts through soft and hardened HVAC and roofing sealant for rapid fastener removal. Built with S2 hardened steel for long life and superior durability, this removable and reversible hex driver allows the user to easily clean the socket and magnet.