Irwin 10221 Unibit Step Drill Bit 13/16 Inch to 1-3/8 Inch 10 Steps

Product Description

The Irwin 10221 Unibit Step Drill Bit is designed for trade professionals who need precision and versatility. This step drill bit covers sizes from 13/16 inch to 1-3/8 inch, making it suitable for a wide range of applications.

• Covers 10 sizes
• 7/16 inch shank diameter
• Made from high-speed steel

Product Highlights

Ideal for drilling into materials such as stainless steel, copper, brass, aluminum, plastic, and wood. The single-flute cutting edge provides greater control and ensures precise, round holes.

Product Information

Standard Information

• Shank Type: Round
• Measurement System: Inch
• Surface Recommendation: Aluminum, Brass, Copper, Metal, Plastic, Stainless Steel, Steel, Wood

Technical Specifications

• MPN: 10221
• Brand: Irwin
• Material: High Speed Steel
• Cutting Angle: 135 Degrees
• Shank Diameter: 7/16 inch
• Overall Length: 2 11/16 inches
• Number of Steps: 10
• Finish: Black Oxide
• Country of Origin: United States
• Maximum Drilling Depth: 1/8 inch
• Decimal Equivalent Sizes: 0.8125, 0.875, 0.9375, 1, 1.0625, 1.125, 1.1875, 1.25, 1.3125, 1.375