ZELCAN 10 Sizes Titanium Step Drill Bit, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician

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About This Includes 10 Step Sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8" Revolutionary Design: Tri-flatted shank fits into power tools chuck securely and e liminates slip; two-flute design clears chips faster and allows particles to escape easily Titanium Coating: Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance Durable HSS Drill Bit: Made of high-speed steel for long-lasting performance, this drill bit easily cuts through iron, aluminum, copper, plastic, wood, and other sheet metals. It also automatically deburrs holes while drilling to maintain a clean bit A Must-Have for Handyman or Professionals: 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) Overview Material : High Speed Steel (HSS) Cutting Diameter : 1.38 Inches Finish Type : Steel, Titanium Shank Type : 3-Flat Cutting Angle String : 135 Degrees Show more