The GrooveTech puts a new Spin on drum keys with a unique sliding t handle that allows quick and easy changing of drum heads without power tools. The handle can be slid from one end to the other for extra leverage - especially useful for high-tension drum corps tuning. Fit and finish is top-drawer, using heat-treated chrome vanadium alloy with a polished chrome finish. The detachable 1/4 inch drive drum key socket is made to precise tolerances.