Hole Saw Use
Post by barrman on Sept 12, 2006, 1:09pm
I hate to use hole saws. It seems that I always get a nice circle started and then the bit in the middle breaks and the saw chews up all kinds of metal it wasn't supposed to touch. I had to cut several holes in my truck over the last week or two and I tried something different this time. It even worked for me.
I figured out where the hole needed to be and where the middle would be. I took the small bit from the middle out and drilled a hole for it. Then I put the guide bit back in. Then I got out my impact gun and the right size socket to hold the hole saw. I turned the adjustable air valve down all the way and started cutting. My gun on low has just enough power to barely turn the hole saw. The slower speed makes it cut better and makes less heat so my saw will last longer.
Two holes for the 3 lever switch and one for the slave receptacle. All bigger than 1-1/2" and no screw ups. for me that is pretty good. didn't even break the guide bit once either.
Thought this might help somebody.