Drill Bit Stop Collars 3mm - 12mm

Use drill bit stop collars to preset the depth you intend to drill to so you don’t drill through your parts. These are great for helping drill the right depth for your magnets.

This set contains the following drill bit collars and is sold separately from the drill bits.

3mm

4mm

5mm

6mm

8mm

10mm

12mm

Totaling 7 collars plus 1 hex wrench.