Quick change of hole saws! Designed for the rapid exchange of hole saws. A hole saw is a practical tool for professionals who need to cut holes for installing pipes and cables. With the PRO Q-Lock adapter, hole saws can be changed faster, allowing for more efficient drilling of holes with various diameters. Q-Lock aims to assist professionals using hole saws in overcoming their common issue: the time required to change a hole saw. The PRO Q-Lock adapter features a 1-inch hex fitting, enabling quick and tool-free changes of hole saws and pilot drills. The adapter nut allows the adapter to accommodate hole saws with diameters ranging from 14 to 210 mm.