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Reviewed in the United States on March 24, 2025
Excelente
Protected_and_fit
Reviewed in the United States on September 6, 2024
Doesn’t cut granite very good, it is slower than most and get the stone hot. Works well with quartz
Tyler
Reviewed in Canada on January 23, 2024
I was doing some tile work and these made it melt like butter easy if you’re installing accessories or piping
SPL
Reviewed in the United States on April 17, 2024
This drill bit cuts through tile and ceramic with no issues, but it's pretty slow. Was a bit jagged, but not too bad. Recommend practicing on a test tile first to see how it looks.
elb
Reviewed in Canada on April 1, 2024
Drills holes in material like it should but slow.The resulting hole is not smoother, etc. than would be produced by a diamond hole saw that has thinner sides. It just takes longer if using this since more material has to be ground away.I can't see a situation in which this is a better choice tool.
Oldshoes
Reviewed in the United States on December 4, 2023
Have to install a faucet tomorrow on a a quartzsite counter top so i did a test cut on a chunk of marble with a cheaper diamond hole saw. I figured while everything was out I'd test out this 1 1/2" Sanleetek Diamond Core Drill Bit also. I wouldn't normally use an expensive coring bit like this to cut quartzsite or marble unless I had to. This is an expensive drill and should take about a 1 ½” x 3" core. I prefer to save that for drilling cement, and use the thinner kerf, shallower, and cheaper diamond hole saws for thin stone. The banner on the product page does say, "Hole Saw for Drilling Granite Marble Concrete," so, what the Hog Worts, i gave it a shot.The Sanleetek 1 1/2" core drill started fine with a guide and my Bosch sds hammer drill set to "drill" mode (no hammer mode) with a slow flood of water. The no load speed on the drill is 850 Rpm, I probably ran it at about 1/2 to 3/4 speed. It cut a decent hole. I kept the bit cool and watered and that cut took at least 5 times longer than the cut i made ten minutes before with a (thin walled) cheap diamond hole saw.I went and read the product page all the way through. “The bits is suitable for 5/8''-11 thread angle grinder. Recommended speed 6000RPM, maximum speed 11000RPM.” That's crazy. Those are instructions for core bits from 1” - 4”. The recommended speed for coring cement (4” diameter) is about 800 RPM – and that's when you're drilling with a stationary coring rig. Recommended speed with an 1 ½” diameter diamond core drill on cement is about 2000 RPM. 6000 – 11000 RPM – that's nuts. It's nuts because it's coming from the people that are bringing the pumpkins to town. They did have one thing right 5/8” - 11 thread is the standard thread for an angle grinder; it is also the standard thread for a dry cutting cement coring bit. Coring bits are made to used with coring rigs (Not AnGle Grinders) and coring rigs are rarely made with an RPM any faster than 1000 RPM- most are around 750 RPM. Seems like someone at Sanleetek said, “Hey this fits on an angle grinder,” then he read the RPM rating on his angle grinder and printed it for the product page.This bit works and will cut (slower than others I've used) – I don't believe these core drills should be used at 6000 – 11000 RpM. I don't care if the whole world is saying it – I want my drills to last. Minus two stars to anybody who recommends these speeds.3 stars for the Sanleetek 1 1/2” Diamond Core Drill
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