Neilsen Step Drill HSS Cone Bit Hole Metal Cutter Tool 3/16" - 1/2" Set Includes 1pc 3/16" - 1/2" six step bit, 1pc 1/4" - 3/4" 9 step bit, 1pc 1/8" - 1/2" 13 step bit Titanium nitride coated high speed steel Quick change 1/4" hex shank Complete with nylon storage bag.
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