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.
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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.