They are hard for me to set as I have some arthritis in one wrist so I set them in a vice in my work shop and then “Plant” them in a run. Use a screwdriver to probe for the run.
Thank you. That’s helpful because we’re unfamiliar with them and I had a plate surgically installed in my wrist after a nasty fall (gardening of all things - and tripping over a very large rock) last year shattering bones and chipping one off a bit.