Amana 55208 Carbide Tipped Countersink 8- 9 Screw 7/64 D x 1/64 Drill D x 5/16 Round Shank

Amana 55208 Carbide Tipped Countersink #8-#9 Screw 7/64 D x 1/64 Drill D x 5/16 Round Shank 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 M2 fully ground drill bit.