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Brand Name: Irwin *Sub Brand: Cobalt *Material: High Speed Steel *Shank Type: Straight *Drill Bit Diameter: 31/64 in. *Dril Bit Length: 5-7/8 in. *Product Type: Drill Bit *Number of Pieces: 1 pc. *Packaging Type: Carded *Application: For Tough Metal Drilling Including Heavy-Duty Abrasive Alloy Metal Drilling on Hardened Steel *Discovery ACC, SUP