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
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Shank Type: Round
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Measurement System: Inch
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Surface Recommendation: Aluminum, Brass, Copper, Metal, Plastic, Stainless Steel, Steel, Wood
Technical Specifications
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MPN: 10221
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Brand: Irwin
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Material: High Speed Steel
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Cutting Angle: 135 Degrees
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Shank Diameter: 7/16 inch
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Overall Length: 2 11/16 inches
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Number of Steps: 10
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Finish: Black Oxide
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Country of Origin: United States
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Maximum Drilling Depth: 1/8 inch
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Decimal Equivalent Sizes: 0.8125, 0.875, 0.9375, 1, 1.0625, 1.125, 1.1875, 1.25, 1.3125, 1.375
