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V-Grip Drill Bit Depth Stop Collar
This slip-on depth stop collar fits any straight-shank drill bit from 3 to 8 mm. An M4 thumbscrew in a brass heat-set insert (5.5 mm bore) clamps the bit into a 90° V-channel, so one collar replaces a whole set of fixed-size stops. The 32 mm flange rests flat on the workpiece, which makes it good for repeatable shelf-pin, dowel and cam-lock re-drilling in flat-pack furniture repairs.
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