5 Pc. Titanium Step Drill Bit Set SAE Metal Drilling Bits

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Heat Treated High Speed Steel (HSS) Coated With Titanium Nitride Two Flute Design Tri-flatted shank for secure universal fit For Drilling Holes in Thin Material Such as Steel, Stai nless Steel, Copper, Aluminum 3/16" to 1/2" Six Step Bit, 1/4" Shank 1/4" to 3/4" Nine Step Bit, 1/4" Shank 1/8" to 1/2" Thirteen Step Bit, 3/8" Shank 1/4" to 1-3/8" Ten Step Bit, 3/8" Shank 3/16" to 7/8" Twelve Step Bit, 3/8" Shank Storage Case Show more