Old lead installer told me to stop using my impact driver on satellite dish mounts
I've been cable installing for about 4 years now and always used my impact driver to crank down those J-mount bolts on satellite dishes. Thought it was fine, got the job done quick. Then this old lead installer, Mike, watched me put up a dish on a tile roof in Austin last summer and pulled me aside. He said I was over-tightening and cracking the mount flanges, causing micro-cracks that would rust out in 2 years. I laughed it off at first, but he showed me 3 of his old jobs with cracks around the bolt holes. Now I hand tighten with a ratchet and only use the driver to get it started. Time is a bit slower but I haven't had a callback since. Has anyone else had an old timer call them out on something like this? What did they say?