Titanium Step Drill Bit, Zhushan Titanium High Speed Steel Drill Cone Bits,Double Cutting Bladesfor Sheet Metal Hole Drilling Cutting1/4 to 1-3/8 Inches Total 10 Step Sizes

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About This 【Step sizes included】1/4,3/8,1/2,5/8,3/4,7/8,1,1-1/8,1-1/4,1-3/8-inch 【Hss and Titanium Coating】High-speed steel make it last longer than others,titanium coating ensure easily cut through iron sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease 【Widely Used】Perfect for home repairs and light jobs such as drilling holes in plastic,aluminum,copper,iron and many other types of sheet metal (excluding steel or any other harder metal) 【Unique Design】he split point tip is at 118 degrees to increase the wear resistance. the two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling work.Fits into power tools chuck securely and eliminates slip 【After-Sales Service】Please read the description and the specifications before you purchase. contact Us with Any Issues and We'll Resolve Them Right Away Overview Material : High Speed Steel (HSS) Cutting Diameter : 1.38 Inches Finish Type : Titanium Shank Type : Hex Cutting Angle String : 118 Degrees Show more