Description
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. Material: HSS Shank: 1/4 “(6.35mm) hex shank Diameter M3x 0.5 (6-32NC) M4x 0.7 (8-32NC) M5x 0.8 (10-32NC) M6x 1.0 (10-24NC) M8x 1.25 (12-24NC) M10x 1.5 (1 / 4-20NC) 7. Package included: 6 x Composite Tap Drill Bit Thread Spiral Screw Tap 1/4 ” Hex