bloomautomatic
Cast Iron
- Joined
- Oct 17, 2012
- Location
- Pennsylvania
We need to drill some 9/16" holes in rubber blocks that are about 2" thick.
These are part of an assembly and have to be drilled in place, horizontally. We have a mag drill with a regular chuck and one with 3/4" weldon chuck for slugger cutters.
We are using punches for the 1/2" thick material and they work well. They won't work for the thick stuff.
We tried a slugger cutter on it, but it gums up on the inside. Tried a forstner bit and it snapped off (I wasnt there so I'm not sure how they did it, may have been using a hand drill.)
A regular twist drill works on the 1/2" stuff, but it seems like its burning through more than cutting.
Due to the size of the it, I dont know that freezing is really an option.
Open to any ideas! Thanks.
These are part of an assembly and have to be drilled in place, horizontally. We have a mag drill with a regular chuck and one with 3/4" weldon chuck for slugger cutters.
We are using punches for the 1/2" thick material and they work well. They won't work for the thick stuff.
We tried a slugger cutter on it, but it gums up on the inside. Tried a forstner bit and it snapped off (I wasnt there so I'm not sure how they did it, may have been using a hand drill.)
A regular twist drill works on the 1/2" stuff, but it seems like its burning through more than cutting.
Due to the size of the it, I dont know that freezing is really an option.
Open to any ideas! Thanks.