2pc Thread M3 M4 M5 M6 M8 M10 Screw Tap Drill Bits Hss Taps Countersink Deburr Metric High Speed Steel 1/4 IN Quick Change Hex

Package include: 2pc Hexagon handle compound Tap Drill ( M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 ) Material: High-speed steel(HSS ) Suitable for soft metal aluminum iron Size: M3x0.5: Total length: 55mm Spiral length: 24mm drill diameter: 2.5mm M4x0.7: Total length: 54mm Spiral length: 24mm drill diameter: 3.3mm M5x0.8: Total length: 58mm Spiral length: 28mm drill diameter: 4.2mm M6x1: Total length: 58mm Spiral length: 28mm drill diameter: 5.0mm M8x1.25: Total length: 59mm Spiral length: 18mm drill diameter: 6.8mm M10x1.5: Total length: 59mm Spiral length: 20mm drill diameter:8.5mm Square handle: 6.35mm