Drill depth DRO Using Powerfix (Lidl) Vernier Calipers

I've got a cheap pillar drill that I picked up for a song a few years back. It's not top quality, and you certainly couldn't do precision work with it. But, it's what I've got, and it's fine for my woodcraft.

One of the most hilarious features was the depth gauge/stop. Not only was its scale extremely coarse, but its pointer had a habit of swivelling away from the scale when the motor was running.

I already had a Powerfix vernier caliper, bought from Lidl UK. It cost a tenner (all but a sh