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Brand Name: Irwin
*Sub Brand: Unibit
*Drill Size: 3/16 to 1/2 in.
*Overall Length: 6 in.
*Material: High Speed Steel
*Product Type: Step Drill Bit
*Number in Package: 1 pc.
*Packaging Type: Carded
*Shank Diameter: 1/4 in.
*Shank Type: Square Shank
*Usage: Stainless Steel, Copper, Brass