Steel Dragon Tools 13pc. HSS Annular Cutter Kit 7/16" to 1-1/16" with 2" Depth and 3/4" Weldon Shank Steel Dragon Tools 13-piece annular cutter kit includes 11 annular bits and two (2) pilot pins. Cutting Depth: 2 in. 3/4 in. Weldon Shank Includes carrying case. SDT annular cutters will drill large holes up to ten times faster than regular drills bits.