A must have tool for every woodworker!Includes drill (slow spiral, High-Speed Steel (HSS) M2 fully ground drill bit). Quick release 1/4" hex shank - 2-wingCarbide tippedLow friction polymer collar. No surface scratches or burn marks!These tools combine carbide countersink, high-speed-steel drill bit and free-spinning, low friction depth-stop. The countersink leaves a clean hole edge and the adjustable depth-stop doesn't mar the surface. The large openings around the collar allow the chips to clear effectively and eliminate clogging. Quick release 1/4" hex shank with slow spiral, HSS?M2 fully ground drill bit included. Excellent For Drilling: Natural WoodsMan-Made BoardsMDFChipboardPlywoodAluminum/Non-Ferrous*Aluminum Composite Materials (ACM)*Composite Decking Materials*WARNING!: For optimal results and extended tool life use lubricant or air cooling. Ensure the material is fixed and drill is stable while drilling.