DRO drill guide

This is a a little plug that you can shove in your dro scale to align the centre point for punching or drilling a mounting hole

It's sized for a snsntdro NTS-S glass scale, clamp the scale, run an indicator up and down it and check it's true and adjust if not, then whack a mark or pilot drill a hole for your mounting bolt. this will put the bolt dead in the middle of the mount for 50% adjustment each way and maximum neatness.