WHAT YOU WILL HAVE: Drill tap bits - 6pcs Metric M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.This drill and tap bit set are made of High speed steel High hardness, rustproof, solid and durable; Self-centering design: do not need additional center drilling or center punching.HIGH SPEED: Fast replacement composite cone uses drill edged principle Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, working efficiency.QUICK CHANGE: Tthis tap drill bit set with 1/4 inch hex , fits into power tools more and securely.WIDELY USE: This screw tapping bit tool Suitable for drilling tapping cutting on light metal aluminum plate, iron, etc. Note:Low Speed and Cutting holes in materials (Thickness: Less than 3mm)Spiral length: 24mm, drill diameter: 2.5mm M4x0.7;Spiral length: 24mm, drill diameter: 3.3mm M5x0.8;Spiral length: 28mm, drill diameter: 4.2mm M6x1;Spiral length: 28mm, drill diameter: 5.0mm M8x1.25;Spiral length: 18mm, drill diameter: 6.8mm M10x1.5;Spiral length: 20mm, drill diameter:8.5mm, Square handle: 6.35mmsize:120x55x7mmMaterial:High speed steelcolour:SilverPackage Contents:6 * Metric Drill Tap Set(M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5)Only the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.