WESTWARD Step Drill Bit, High Speed Steel, Bright (Uncoated), 1/2 in to 1 in Size Range, Hex - 19N142|19N142 - Grainger
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Made in USA - 1/2" Body, 11/32" Step Diam, 1/2" Diam Straight Shank, High Speed Steel Subland Step Drill Bit - 01603208 - MSC Industrial Supply
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10194A Titanium Step Drill Bit, High Speed Steel | 1/4" to 1-3/8" | Total 10 Step Sizes, TITANIUM | HIGH SPEED STEEL: classic high speed steel with.., By Neiko - Walmart.com
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Step Drill Bit #15 Double Fluted 7/8 to 1-3/8-Inch - KTSB15 | Klein Tools - For Professionals since 1857
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