I have to admit I see more trades useing these every day....but have yet to try one yet. The tin knockers and black iron guys seem to be useing them quite a lot on my current jobsite.
Maybe I should give one a try, I'm one of those guys who loves tools and gadgets too much and also spends too much on them. But...having the correct tool (like a control punch K.O. with keyway) can often save a lot of time. Plus makes the powers that be impressed with you occasionally.
Thanks for the first hand recommendation.
