With these drills the screw heads will always be drilled to the same depth. This tool has three functions:
1. Wood drill for decking boards (ideal for Bangkirai), D=6 mm (6853) or D=5.5 mm (6930)
3. Adjustable depth stop (fixed on 6853, freely rotating on 6930)
The adjustable depth stop prevents the screw going too far. The stop can be variably adjusted to the respective screw head. Pre-drilling and counterboring prevents splintering around the screw head. General pre-drilling of the boards is necessary (approx. 0.5 - 1.0 mm larger) since the screw is a foreign body in the timber.
- Rapid and uniform drilling with simultaneous pre-countersinking for the screw head