“While the initial description of the product was lack luster at best the product support was absolutely awsome to put it mildly, their rep stayed with me every step of the way until he educated me enough to put together a functional core setup, thank you very much for your time and energy to set me on a even keel.”
“I purchased the 1.5 inch and 3 inch wet coring drills. These were paired with a Weka wet coring drill. They easily went thru a six inch foundation of concrete in about 4-5 minutes with no issues. They showed very little wear. The 1.5 inch bit also was used to drill holes in some Hardy plank. They are now waiting for their next jobs.”
“I purchased the 1.5 inch and 3 inch wet core drill bits. Used the WEKA wet coring drill CB515 with them. Went thru 6-7 inch concrete foundation very quickly in less than a few minutes. I needed these quickly to keep a project on time. The shipping options got them to me hours before needed. Thank you very much EDiamond tools!”
“I purchased (1) 1.5", (1) 2" & (1) 2.5" all for coring through brick. Do not waste money on the pilot bit. It's actually easier without (at 12" long, it's not very stable and actually caused more problems in the first hole I did). My first hole was sloppy looking so I had to re-gropup. To rectify this, I purchased a couple of 1"x 6"x 6' pine boards and wood hole saw bits the same diameter as my masonry coring bits. I placed the 1x board vertically against the wall resting it on the ground, marked the center points, removed it and use the wood hole saw through the 1x creating a template. I Positioned the 1x board back on the wall, using my foot to put pressure on the bottom and used the wifie to hold the top (no need to anchor the 1x to the wall, you only need it for a few seconds to get the coring bit started - you only need about 1/8" into the brick & and you're done w/ the wood template). I was able to remove the 1x and relieve the wife and then continue my core. Worked awesome! Perfect cores. I've cored about (15) holes through the brick all perfect. I used a Hilti 16-C Hammer Drill (do not use the hammer drill option for core bits - just the rotary drill option). I have a medium hard red clay brick and it took me about 4-5 minutes per hole (after the templating). Do not use water - these are dry coring bits. Hope this helps. These are very reasonably priced masonry coring bits. I would buy their products again. RK.”
“I was skeptical at first since I have never heard of this company, but I am very happy with the product. We have drilled over 10 holes and have had no issues with the bits or the coring machine. I highly recommend Ediamond products.”
“40/50 diamond inserts cut great for the first half of the day. Progressively slowed to almost nothing. Ground a 3000 square foot floor, and it took 3 days for one machine. 1500’ was ground in the first day. So on 2nd 3000 sq ft floor I bought the 30 diamond inserts with worst results, after 3 days (34 hrs) we ground 1000 sq ft. I stopped and had floor shotblasted,”
