Description
Features:
- Perfect for pre-drilling holes for nails or screws to avoid splitting the material
- Their trapezoidal design creates a tighter grip between the workpiece and the fastener
- Made from high-grade carbon tool steel – maintains sharpness for a long time
- Compatible with both standard and impact drivers
Specifications:
| ⌀ | Length | Spiral Length |
| 3 mm | 110 mm | 45 mm |
| 4 mm | 125 mm | 60 mm |
| 5 mm | 135 mm | 70 mm |
| 6 mm | 135 mm | 70 mm |
Shaft: 6.35 mm hexagonal
Maintenance:
- We recommend regularly cleaning the drill bits from residue, lubricating with vegetable-based oil to prevent corrosion, and storing in a dry place (steel is susceptible to rust)
Tips:
For pre-drilling holes for wood screws:
- Select a bit roughly 70-80% of the screw’s thickness for the best grip (e.g., 4 mm screw = 3 mm bit).
- Drill to a depth of 1/2 to 2/3 of the screw length.
