Me smart ,well I haven’t tried so we’re not exactly sure yet .
I’m working on tiling my tub/shower alcove ,and I’ve never cut a hole before.
I watched a few YouTube videos where the guy was angling in the diamond bit with a cordless drill to get it started ,and then straightened it out as it dug in .
I’m sure water would have helped ,but in my case I have no one around here dependable enough to hold a hose on it while I drill , so I concocted this device , a water table for the drill press .
I need to drill a large 4” hole for the mixing valve , and bought a cheap set of diamond bits off of Amazon.
So I took my scraps and built this dam and put a piece of Kerdi board on the bottom , this way I won’t drill into the wood once I get threw the ceramic tile .
My idea is to fill it up with water , just enough to cover the tile , and use my drill press to guide the bit .
I used tight bond glue around the sides to seal the wood from getting wet . Just added another layer to the corners , so the glues still wet, so I can’t do a test yet
Not sure if it’s going to work,but will report back later