Today was an excercise in patience. In the bathroom I needed to drill seven holes for the plumbing in the porcelain tiles. They measure 12 by 24 inches and are 1/4 of an inch thick. Originally I had planned to use the drill press. The holes only need to be 3/4 to an inch max.
The drill press posed two problems. 1) The reach was not deep enough to center the hole that needed to be cut. 2) By applying a steady single point of pressure to the tile (as a drill press will do) the tile is likely to break (aka split) before the hole is pressed.
At around 10:00 this morning I had measured and marked the three tiles (three holes in two, one in the other). By 11:00 I had broken two of them and only managed an 1/8 inch hole in the third. I decided I would hire someone to do the job for me. Trouble is, no one wants to take that job. The best I got was an explanation and a hearty good luck. Peak time of year for trades guys and, like the roofing guys, they've got much bigger fish to fry.
Using a hand held drill with carbide tip masonry bits and progressively increasing the size of the hole I was able to drill through the tile-- in time. You really have to let the tool do the work. If you force it it will break. In the case of the drill press the tile will break, and with the hand drill the bit will break. I broke off a tip in a hole by forcing it. It was like the most perfect tooth filling ever. Carbide steel set in porcelain. Luckily that was on one of the ones I shattered early. The good news is I didn't break any more. It's a good thing too, we're starting to need every single one left. The carbide bits were good, but I still did a lot of shaping with the dremel tool.
In the end the drilling and shaping of the seven holes took about ten hours. Yeee, what a way to spend a day. On the up side Michael is downstairs right now thin setting them in place.
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