RetiredUnit1
Well-known member
The first bit that I bought was made in the U.S.A. and the technique for drilling holes in tile, glass, mirrors, etc. was included in the instructions. The next set I bought was because I lost the first bit -- no instructions but very inexpensive.Interesting coolant technique!
I've got the diamond hole saws for drilling but I'd just dunk the bit or the bottle in a bucket of water to keep it cool and evacuate the chips.
this method taught me the importance of wearing gloves while working with glass..
For the finer details like shaping and those little percolator holes, I submerged the glass in a little trough and used an 1/8" rotary tool with diamond bits and an extendo-snake attachment.
***Just a caveat, antifreeze is very close to sugar in chemical composition and is sweet tasting. Some pets will be attracted to it and will lick it up. It's very toxic and can be fatal, so be sure to clean up well after using.***
I have the vise setup so the bottle is completely immobile and I don't have to hold it. If I did have to hold it I'd use my welding gloves. I don't weld but I make some bodacious bbq's, and the welding gloves keep the heat out. You can actually pickup hot coals on the ground and toss them back into the pit!!!