Amana Tool 55600 Carbide Tipped Countersink Taper #4 Screw 3/8 D x 3/32 Drill D x 5/16 Round SHK

2-Wing Round Shank With Taper Point For Wood Screws, IncludesHigh-Speed Steel (HSS) M2 DIN 338 Fully Ground Drill Carbide-tipped for long lasting results in hardwood, plywood, plastics, etc. Used to countersink and counterbore holes for the heads of screws in woods, plastic and non-ferrous materials. The 2-flute integral design ensures uniform and concentric results each and every time. Carbide tips provide chip free hole edges and last at least 40 times longer than steel countersinks. Available in a wide variety of sizes, complete with the HSS drill bit.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.