Simply slide over the drill bit and tighten down at the required depth.
This 7-piece set is supplied in a plastic tube and contains 3, 4, 5, 6, 8, 10 and 12mm collars.
Simply slide over the drill bit and tighten down at the required depth.
This 7-piece set is supplied in a plastic tube and contains 3, 4, 5, 6, 8, 10 and 12mm collars.