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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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 Bits Designed for Increased Durability, Speed and Productivity From: Diablo | Industrial Distribution
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