Safe Lock™ Woodworm screw.
Turn your Nova Chuck into a Screw Chuck for mounting bowls etc with a single drilled centre hole.
The form of the screw has a deep fine blade which is machined right to the end of the screw. This allows an easy lead into the wood. The Safe Lock™ Woodworm screw features a square shank and a locating groove so it can lock positively into the NOVA chuck body. Comes standard with all Nova chucks
.