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The IRWIN Tools 10234CB Unibit Cobalt Sheet Metal Step Drill Bit is a versatile tool that offers 12 different hole sizes in one bit, ranging from 3/16 to 7/8 inches in 1/16-inch increments. This step drill bit is ideal for creating true, round holes with a smooth, clean finish in a variety of materials such as stainless steel, sheet metal, aluminum, fiberglass, plastics, plexiglass, and wood. Constructed from cobalt high-speed steel, it delivers increased cutting edge life, making it perfect for tough tasks like drilling into stainless steel. The SpeedPoint tip ensures fast penetration without the need for a pilot hole, and the 3/8-inch hex shank provides a secure grip in the drill chuck. Laser-etched sizes inside the flute allow for precise control and easy size identification during use.
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