1. Pointed Edge: Pointed edge, high efficiency and wear resistance, high accuracy grinding, cutting without burrs2. Double Spiral Chip Removal: Adopt double spiral chip removal, large chip grooves, chip removal more smoothly3. Universal Round Handle: Use universal round handle, firm and continuous handle, shockproof and reliable4. Application: Suitable for steel plate, stainless steel, copper plate, aluminum alloy, die steel, cast iron5. Long Service Life: Has long service life, and sharper and more durable than other drillsSpec:Item Type: Cemented Carbide Twist DrillMaterial: Cemented Carbide + Tungsten SteelLength: Approx. 70mm / 2.76in (There is a 2mm error in manual measurement)Diameter: Approx. 5.5mm / 0.22inBlade Length: Approx. 32mm / 1.26in (There is a 2mm error in manual measurement)Quantity: 10PcsUse Scenarios: Steel Plate, Stainless Steel, Copper Plate, Aluminum Alloy, Die Steel, Cast IronPackage List:10 x Twist Drill Bit