Pilot Point ® tips grab on contact, ensuring clean, accurate drilling. No-Spin ® shanks lock tightly in the chuck, minimizing hassles. Tapered webs help prevent breakage. Size marked for convenience. Includes indexed Tough Case ®, a booklet-style box. Material(s): Gold Ferrous Oxide; Size: 1/16"; 5/64"; 3/32"; 7/64"; 1/8"; 9/64"; 5/32"; 11/64"; 3/16"; 13/64"; 7/32"; 15/64"; 1/4"; 17/64"; 9/32"; 19/64"; 5/16"; 21/64"; 11/32"; 23/64"; 3/8"; 25/64"; 13/32"; 27/64"; 7/16"; 29/64"; 15/32"; 31/64"; 1/2"; Drill Bit Range [Min]: 1/16"; Drill Bit Range [Max]: 1/2".