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Irwin - Drill Bit Set: Spade Drill Bits, 3 Pc, 0.625″ to 1″ Drill Bit Size, High Speed Steel - 55266985 - MSC Industrial Supply
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Irwin - Drill Bit Set: Jobber Length Drill Bits, 5 Pc, Carbon Steel - 05529193 - MSC Industrial Supply
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IRWIN Tools SPEEDBOR Blue Groove Pro Spade Bit Set with Case, 8-Piece (341008) - Wood Drill Bits - Amazon.com
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