Feature
●【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 chip, 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 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.
●【31 Step Sizes】13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch)
Description
TWO-FLUTE SPIRAL GROOVED DESIGN
Applicable materials
