All Questions
3 questions
14
votes
5
answers
25k
views
Masonry bits dulling after 3-4 holes
I'm using an 18v makita hammer drill with a 3/16" Bosch blue granite turbo concrete bit to drill 2" deep holes into concrete-filled cinder blocks. With a fresh bit, it takes about 15 seconds to drill ...
- 1,070
1
vote
1
answer
198
views
Will a Bosch hammerdrill bit drill concrete faster than a cheap Makita bit?
I had to drill several 3/8" holes into very hard concrete. I purchased a Bosch LBH008 drill bit, but since I hadn't received it, I bought a cheaper $3.60 Makita drill bit that drills incredibly slow. ...
- 2,133
6
votes
2
answers
3k
views
Drilling 1/4" steel plate and concrete?
I need to drill (44) holes in (22) 1/4"-thick stainless steel plates. These are for 3"x3/8" heavy Duty Screw Anchors that will go through the plate and into the concrete.
My question is: if possible, ...
- 2,133