Review on Diamond Countertop Porcelain Bathroom Installation Cutting Tools in Hole Saws & Accessories by Chris Spoja

It only took a few minutes (literally about 120 seconds) to grind each hole in a 3/16 inch aquarium glass. hole saw and put a piece of tape on the glass behind my cut to reduce the tear on the back. I started my cut at a very slow speed, at a slight angle, and then smoothed out my approach when the saw bit and stopped. Hike. I made 4 holes with no noticeable reduction in cutting ability. I didn't break any glass. I assume I can get 10 more holes with this saw.