Tifco - DuraMaxx Coated Step Drill, 1/4-1 3/8 by 1/16

The DuraMaxx Coated Step Drill delivers precision drilling across multiple hole sizes in a single tool. With a range from 1/4" to 1 3/8" in 1/16" increments, this step drill eliminates the need for multiple bits and reduces setup time on the job. The durable coating resists wear and extends tool life, making it ideal for metal, plastic, and composite materials. Part #51421 is engineered for clean, accurate holes with minimal burring. Perfect for HVAC, electrical, and general fabrication work.