This compact set replaces 28 individual drill bits. 3pc Step Drill Bits. 1/8"- 1/2", 3/16"- 1/2", 1/4"- 3/4". Two-flute design and titanium coated for faster, smoother cutting. Package comes with one 1/8-inch to 1/2-inch thirteen-step bit, one 3/16-inch to 1/2-inch six-step bit, and one 1/4-inch to 3/4-inch nine-step bit.
SET INCLUDES: Bit #1 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #2 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"