Amana tool 55268 Carbide Tipped Countersink 1/2 D x 49 Deg x 1/4 Quick Release Hex SHK for Wood Screw #12

Quick Release 1/4" Hex Shank With Slow Spiral, Includes High-Speed Steel (HSS) M2 DIN 338 Fully Ground Drill  Drill pilot hole and tapered countersink for wood screws. Carbide-tipped for long lasting results. Excellent for Drilling: Natural Woods Man-Made Boards MDF Chipboard Plywood Aluminum/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.