1.3 cm and 1 cm quick-change drill bit adapter

One-click bit change: Instantly change drill bits without manual pressure to save time on repetitive tasks. Features a quick-change chuck mechanism that securely locks for efficient workflow on complex home improvement projects requiring frequent tool changes. Dual capacity: Holds two hex bits simultaneously for versatile drilling and screwdriving applications, allowing for seamless transitions between tasks without stopping to swap accessories. Perfect for professionals handling multiple fastener sizes in tight construction spaces on a daily basis. 46mm deep socket: Accommodates long drill bits and double-ended bits without the need for additional extensions, providing extended reach for deep holes while maintaining stability. Designed for users working with standard 6.35mm hex shanks in various construction hardware scenarios. High-speed stability: Constructed with a precision-machined 40CRV alloy steel bit shaft. For wobble-free performance at high RPM, providing smooth operation and reducing wear on your equipment, suitable for demanding jobs requiring constant torque and time accuracy. [For general tool fitting]: Designed for most electric drills with 1/2" or 1" chucks, this drill adapter offers broad compatibility for different machine models, a reliable connection, and power transfer for various home or professional construction equipment needs.