Check the listing for details. Step Drill Bit Set - Titanium Coated,High Speed Steel Drill Cone Bits,3-Piece. Color: Gold, Condition: New. Listed at 5.85 USD. Specification of Our Step Drill Bit :Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"Bit #2 (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 #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4".Our step drill bit set includes 3pcs individual drill bits, 28 Size. 1/8"- 1/2", 3/16"- 1/2", 1/4"- 3/4". Split point tip design provides faster and smoother cutting, increase the wear resistance. HSS along with titanium coating ensures the stepped drill bits stay sharp for years, perfect to drill holes on plastic, wood, sheet metal, steel and other surfaces, Suitable for home DIY lovers.Step Drill Bit, Step Drill Bits, Cone Drill Bit, Unibit Step Drill Bit, Step Bit for Hole Drilling