Safely screw inside studs
When building with the Kinook system, it is often necessary to screw inside the C-studs, on constructions built against a wall
If too short a screwdriver bit is used, the drill's chuck will rub and damage
itself against the edges of the stud.
These bits are long enough to screw inside the stud, without the chuck touching the edges.
High-quality and magnetised PH2 for a firm grip on the screw