BIT,STEP #3 COBALT (34403C) Step Drill Bit for Stainless Steel The Greenlee BIT,STEP #3 COBALT (34403C) is a step drill bit engineered for maximum life and performance on stainless steel. Designed for professional electrical distributors and switchgear suppliers, this bit offers efficient drilling with reduced force, making it suitable for clean and smooth hole cutting in stainless steel up to 10 gauge. It also cuts mild steel, copper, brass, aluminum, fiberglass, plastic, wood, and laminates, providing versatile use in various lighting solutions and wire and cable installations. Specifications Manufacturer: Greenlee Manufacturer Part #: 34403C Country of Origin: United States Made in USA: Yes Stainless Steel Capacity: Up to 10GA Number of Steps: 12 Minimum Diameter: 3/16” Diameter Increments: 1/16” Maximum Diameter: 7/8” Hex Shank Size: 3/8” Product Weight: 0.2800 lbs UPC: 783310057901 Features Cobalt High Speed Steel (HSS) for enhanced durability and heat resistance Dual-flute design with two cutting edges for faster drill times and less force New split point tip eliminates walking and penetrates quickly Steam oxide finish runs cooler and extends bit life Cuts clean, smooth holes in stainless steel and other materials Downloads & Links Brochure