Edge finder

[f350ca]

I have a Starret one right now, seems to work well and is well made, will take an occasional over speed. Have had a couple of import ones over the years, they seemed as accurate but accidentally hit the start button at 2 or 3 thousand rpm and they come apart pretty quick. Tried an electric one, where the light comes on on contact, again seamed accurate enough but wasn't worth the trouble to track down a new battery when the original died.