Description of Starrett KD0414 N 4 Inch Diamond Holesaw
Effective cutting of hardened steels, fired ceramics, aggregate containing concrete, non-metallics and other difficult to cut materials. Clean effective cuts and extended life. Uniform synthetic diamond grit bonded over a durable steel platform. Always use a coolant and start at a low speed, increase speed as ease of cutting is noticed while avoiding heat build-up on the cutting surface. Recommended cutting speed is from 150 to 300-RPM.
I wanted to install a light on brick garage paneling. Apparently this was an option the original buyer didn't want and finding a contractor to do it is difficult. I'm something of a handyman and my biggest fear was that this 4 inch blade would be exactly the same outside size as a 4 inch lightbox. I took an old cinder block and cut a hole and to my delight the light box had a tight tolerance perfect for the box the light will be hanging from. Cuts better and the cutting speed shouldn't be slow…
Pros
Efficient cutting of hardened steel, fired ceramics, cementitious aggregate, non-metals and other difficult-to-cut materials
I bought this hole saw to drill a hole in porcelain stoneware 300 x 300mm for installing a shower thermostatic mixer. I've watched YouTube videos of others cutting large diameter holes in tile with a diamond blade on an angle grinder, but I wanted a cleaner result. I used the drill press with the tile in a shallow plastic pan filled with water to oil the cut and keep everything cool. Like all large hole saws, this one needs a pilot drill to keep it from wandering, so I bought a Starrett XA2…
Pros
Always use coolant and start at low speed, increase speed as the cut becomes easier avoiding overheating of the cut surface
Just wanted to drill a 4.25" hole in a 4" thick concrete deck to install a 4" stormwater drain line. The spot I chose for the hole turned out to be a full 12 inches of 3,000 psi concrete that was as hard as rock. This hole saw cut right through him. I used a 1/2" Sears bit, which worked well. I used a garden hose to fill the hole and didn't apply too much pressure, pausing for a few seconds about every minute to make sure the water drained drained to cool the teeth of the hole saw. It took some