Metric Step Drill Set,Zhushan 3Pcs High-Speed Steel Shank Titanium Step Drill Bits for Sheet Metal Hole Drilling from 4-12mm/4-20mm/4-32mm

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About This Works great in making a smooth, clean and perfectly round hole 3 Sets Step Drill: With 3 sets 5 stage + 9 stage + 15 stage step drill, you can drill different sizes from small holes to big holes Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc HSS steel large step cone drill titanium bit set hole cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat Overview Material : High Speed Steel (HSS) Cutting Diameter : 4 Millimeters Finish Type : Titanium Shank Type : Hex Cutting Angle String : 118 Degrees Show more