HSS Step Drill Bit .

【HSS Titanium Coating】HSS 4241 & high-speed steel with titanium coating for strength and longevity.
Coated by titanium, this step drill set performs well in heat, corrosion, and rust resistance.
【Two-flute Spiral Grooved Design】The two-flute spiral grooved design deburrs chips, dust, and debris for clearance and smooth cutting.
With 31 step sizes, each hole made with these step bits will be precise.
【QUICK-CHANGE】The 1/4-inch hex/round shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact-ready power tools.
【Multipurpose】Perfect for home DIY, and general building/ engineering use such as drilling holes in wood, plastic, aluminum, copper, iron sheet, and many other types of sheet metal.







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