clev1066 said:
Alex said:
Texastutt said:
I can't wait till I get my hands on a T15... I'll cut a hole in the empire state building.
Don't count on it. I did some tests drilling through concrete today with mine ....... complete fail. Deepest hole was 2 mm.
Agree. I have an 18v Bosch hammer that I can use for light masonry. However, when it comes to concrete and stone; it's time for the big Milwaukee.
Exactly right.
A hammer or percussion drill will always be superior for masonry drilling. The C12, or any other non-percussion drill for that matter, will perform pretty well as long as you -
a) use the correct bit. Masonry bits are offered in both percussion and rotary models, make sure you use a bit rated for rotary applications. As with anything, quality matters. Junk bits will burn up in seconds. I had the best luck with Hilti and Rawl.
b) use the lowest speed setting. Sometimes you have to go slower to go faster, and that is the case here.
c) clean out the hole frequently.
d) use a little more pressure on the drill than you generally do. Not a lot, but some. The twist on the bit is only to remove debris, it doesn't really help feed into the cut.
e) be reasonable with your expectations. You aren't going to have any luck drilling a 1" hole in 6k PSI concrete with a C12. It will work fine for Tapcons and the like. I have drilled a couple dozen 1/4" or smaller holes with mine, and it worked as well as I could have asked.
Is it the C12 the right tool for the job? No, but it beats having to run back to the truck if all you need to do is install a couple of Tapcons.
Among the best tool purchases I have made was a small 3-mode SDS rotary hammer. There are a few Festools (including the C12) on that list as well.