1.Made from heat-treated and tempered high carbon steel, featuring a hex shank (6.35mm) for a secure chuck grip.
2.Includes a sharp spur for smooth holes and a screw point.
3.The design incorporates four flutes, ensuring faster drilling. It is specifically designed for creating punch holes in wood, plastic, and other soft materials. However,it is not suitable for use in metal or other hard materials.
| Diameter | Blade Length | Total Length | Shank Diameter |
| 10mm | 70mm | 165mm | 6.35mm (1/4") |
| 12mm | 70mm | 165mm | 6.35mm (1/4") |
| 14mm | 70mm | 165mm | 6.35mm (1/4") |
| 16mm | 70mm | 165mm | 6.35mm (1/4") |
| 18mm | 70mm | 165mm | 6.35mm (1/4") |
| 20mm | 70mm | 165mm | 6.35mm (1/4") |
| 22mm | 70mm | 165mm | 6.35mm (1/4") |
| 24mm | 70mm | 165mm | 6.35mm (1/4") |
| 25mm | 70mm | 165mm | 6.35mm (1/4") |
| 26mm | 70mm | 165mm | 6.35mm (1/4") |
| 28mm | 70mm | 165mm | 6.35mm (1/4") |
| 30mm | 70mm | 165mm | 6.35mm (1/4") |
| 32mm | 70mm | 165mm | 6.35mm (1/4") |
| 35mm | 70mm | 165mm | 6.35mm (1/4") |
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