-7 Pcs Bits Size: 1/4, 3/8, 1/2, 5/8, 3/4, 7/8 & 1 Inch
-Hardened and tempered, high carbon steel construction maximum 5,000RPM
-3/8" reduced shanks fit nearly all drills
-Bit is guided by own edge to bore straight, smooth holes in wood
-Designed to make professional flat bottom holes, pocket holes and clean-through holes
-Complete with wooden case