7Pc Inch T.C.T. Core Drill Kit in Plastic Box - 1-3/8" Cutting Depth Contents (1-3/8" cutting depth): 5pcs of core drills: 9/16", 5/8", 3/4", 7/8", 15/16" 2pcs of pilot pins: 6.34/5.3 x 77mm & 7.98 x 105mm