1. High Quality and Brand new.
2. Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc.
3. Fast replacement composite cone, uses drill edged principle.
4. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.
5. Self-centering point, do not need assistant center drilling or center punching
6. High hardness, rustproof, solid and durable.
7. Metric : M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5
8. Material: HSS Shank: 1/4 "(6.35mm) hex shank Diameter
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
6x Hexagon handle compound Tap Drill Bits