Versatile Size Compatibility: Works with 38mm+ pipe hole slicers and various other sizes, offering flexibility for enlarging holes or drilling tasks across materials Carbon Steel Construction: Made with 40 # carbon steel body and steel center bit for enhanced durability and wear resistance Ensures smooth drilling on wood, aluminum, and thin metal sheets Effortless Accessory Change: Enables immediate tool replacement with its release design, reducing delays during intensive jobs Great for construction sites and home improvement projects Waste: Specially designed channels secure efficient debris removal, clogs during prolonged use Keeps workflow stable for large scale projects Quick Detach Functionality: Features an easy attach mechanism for fast connection / removal of cutting tools, boosting efficiency in woodworking and renovation tasks Ideal for professionals needing frequent accessory changes, Manufacturer: KACCDE