Magnetic mount for Maglite Mini. The six holes in rear are for magnets and are 10mm x 2mm.

If you are using 10mm round magnets then you can get away with only using four magnets. If you are using smaller (6mm or 8mm) I recommend using 6 magnets. Glue magnets in place.

I used 10mm x 3mm magnets so they stick out a little out the back which is fine.