Keep the drill at an angle of 90° with respect to the surface being drilled.

The drill must be held fully perpendicular (at 90°) to the surface being drilled, throughout the drilling operation, to avoid breaking it.
The pressure applied to the drilling machine must also be applied in the axis of the drill bit and perpendicular to the surface being drilled.

No marks on the wood

To ensure a perfect result, hold the depth stop between two fingers to stop it rotating and avoid any shavings which are between the end stop and the board being caught and marking the surface of the wood.
This ensures the shavings are completely removed during drilling.

Cylindrical, flat-bottomed hole

The step drill bit for plugs, exclusive to NÖVLEK®, is designed to drill a flat-bottomed cylindrical hole into which the plug will fit perfectly.
The blades ensure a sharp, splinter-free cut in all types of timber.

Adjustment according to the job

The height of the drill can be adjusted, especially to modify the drilling depth to suit the timber being used. A board in an exotic species, laid onto a joist also in an exotic species, requires the joist and board to be drilled through for the full length of the screw. Where the same board is laid onto a joist in a resinous wood only the board needs to be drilled.