Description: Drillpro 6pcs HSS 6542 Titanium Coated M3-M10 Combination Drill Tap Bit Set 1/4 Inch Hex Metric Deburr Countersink Bits Uses High Speed Steel 6542 material, higher hardness, more durable,can be used for drilling the steel plate even the 2mm 304 steel plate. Titanium Coated, rust-proof. Complete Hole Drilling, Tapping And Deburring/Countersinking In One Operation With Power Drill Saves Labor, Time.Applicable to some types of carbon steel and ordinary steel, copper and aluminum alloy drilling hole. Specifications: Type: Tap Drill Bit Material: High Speed Steel / HSS6542 Shank: 1/4" (6.35mm) hex shank Surface Treatment: Titanium Coated DIY Supplies: Metalworking Size: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 Quantity: 6pcsTap Drill Bits Size Bit Diameter(mm) Shank Diameter(mm) Shank Length(mm) Blade Length(mm) Total Length(mm) M3x0.5 3.0 6.35 41 25 65 M4x0.7 4.1 6.35 36 31 66 M5x0.8 5.0 6.35 36 32 67 M6x1 6.0 6.35 34 34 68 M8x1.25 8.1 6.35 33 38 69 M10x1.5 10.0 6.35 32 40 70 Features: High hardness, rustproof, solid and durable. The advantage is opening, tapping, chamfering. Self-centering point, do not need assistant center drilling or center punching. Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency. HSS6542 (M2) is of higher hardness and more durable than the HSS4341, and is suitable for cutting the steel even the 2mm 304 steel. Package Included: 1x Set (6pcs) Hex Shank Tap Drill Bits More Details: ,,,,,,,,