Let's continue this thread...I need a 6" hole cut in my tile lined brick chimney, perhaps two holes in the two chases (13x9 and 6x8"). So I have decided that a diamond cut is best and decided to contract the issue. Of course around this stinking part of the country even the contractors need to buy a new beamer on my back and I have decided to DIY.
So I bought a 6" dry diamond cutter - got one off of ebay $75. Now comes the drill. My garbage dump of drill entrees will never hack that job so I need to buy something with gonads. I need a good hammer drill++ even though I may not use the hammer setting here. After much reading I decided to get a Hilti te-55. So as it was a Friday I went to collect my lottery winnings.... yes you guessed it, I lost again. So off to ebay.... got one also for $75 with one tiny problem, it did not work (as advertised). So as life is a crap shoot anyway I bought new brushes for $15 on ebay and sure enough ....... it still did not work. Jumped up and down, cursed and got drunk and the next day....... yep it still
did not work. Funny that usually that fixes most things.
Took the switch apart and it was loaded with concrete dust put it back together and bingo it worked. How the hell did concrete get in there? I hope the clutch is OK it's obviously had a hard life. So onto my questions.
I know I need a taper drill as a guide which one should it be and where can I find one for less than a kings ransom. Once I have started the hole I need to change to a smooth core something or other to stop it biting... What is that and where do I get it? Any other words of wisdom before I tackle this one. I'm a little nervous here.