Description:Drillpro 6pcs HSS 6542 Titanium Coated M3-M10 Combination Drill Tap Bit Set 1/4 Inch HexagonMetric Deburr CountersinkSpecifications:Product NameTap Drill BitMaterialHigh Speed Steel / HSS6542Shank1/4" (6.35mm) hexagon shankSurface TreatmentTitanium CoatedDIY SuppliesMetalworkingSizeM3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5Quantity6 Pcs x Tap Drill BitsSizeBit Diameter(mm)Shank Diameter(mm)Shank Length(mm)Blade Length(mm)Total Length(mm)M3x0.53.06.35412565M4x0.74.16.35363166M5x0.85.06.35363267M6x16.06.35343468M8x1.258.16.35333869M10x1.510.06.35324070Features:1. High hardness, rustproof, solid and durable.2. With self-centering point.3. Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc.4. Drilling and tapping in one.5. HSS6542 (M2) is of higher hardness and more durable than the HSS4341, and is suitable for cutting even the 2mm 304 steel.6. Complete Hole Drilling, Tapping And Deburring/Countersinking In One Operation With Power Drill.Package Includes:6 PcsxHexagon Shank Tap Drill Bits