Use the QEP 5/16 in. Diamond Hole Saw Kit to drill holes for bathroom pipes on various tile surfaces. In addition to the hole saw, the kit contains adhesive pads, a water cooling system and drill guide. This hole saw must be used with the water system to keep it from overheating and must be used with a cordless drill.
- Drills 5/16 in. holes in ceramic, glass, marble, porcelain and granite
- Tough, diamond grit cutting edge for long lasting use, limited wear, faster cuts, less dust and less chipping
- Water cooling system keeps hole saw cool for a longer life
- Convenient, single piece water delivery system
- Kit includes 6 adhesive pads, water cooling system, drill guide and drill bit
- Only for wet use with cordless drills
- Easy to clean by rinsing with hose or in clean water after each use
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
Jared Schultz (verified owner) –
The water chamber allowed the water to pour too quickly. Otherwise I feel this is a great product. I liked the chamber, since it allowed me to center the drill bit easily. I plugged some of the holes to slow the water. The drill bit worked great and I was able to install the shower door easily.
Jolie McGlynn (verified owner) –
When I first saw this I wasn’t sure how good it would work. After using it to install a shelf and sliding glass door in my shower I was amazed how good it work!
Demarcus Hilpert (verified owner) –
I read some other reviews that said this drill bit was junk. I found quite the opposite. Drills quickly and cleanly. Just make sure you spray a lot of water on the bit while drilling. I used a spray bottle and directed the stream of water at the tip of the bit at the hole. Worked great and is still working. I have 4 more holes to drill and I don’t foresee any problems. Great little tool
Amparo Rogahn (verified owner) –
My task was to install 1 shower rod, 1 towel bar, and 1 toilet paper holder, all on very hard 1/4″ thick porcelain tile. That required a total of 10 holes. I actually drilled 13 holes due to “operator error” but I won’t elaborate on that story! I ended up buying two 5/16″ QEP diamond hole saw kits and, finally, a Milwaukee drill bit to complete the task.On the plus side, the plastic guide taped to walls is indispensable. Drill bits will “skate” all over the wall without this guide or another like it. On the negative side, the water cooling system is a cruel joke. Water dissipates through the plastic container in about 30 seconds, but it takes at least 30 MINUTES to drill through 1/4″ porcelain tile. My advice is to tape the bottom plastic guide to the wall and drill long enough to get a hole started. Remove the bit periodically and dip it in bowl of water to cool. After the hole has been started you can remove the guide and complete the hole without the guide. Use a spray bottle of water to cool the bit and remove debris. If you remove the guide carefully you can perhaps use the tape twice.Other reviewers have complained that the package doesn’t have enough two-sided tape strips. However, when you run out of tape strips it is probably way past time to replace the bit anyway. I found that these bits would last for about 5 holes before they became completely useless. My advice is to buy this kit for the guide alone and use the included bit until it wears out. Then buy a better quality bit to complete your work.
Julien Champlin (verified owner) –
Excellent for what I needed. It does not have a pilot drill, so you must use the base to get the bit started. I needed to over drill a hole and anything with a pilot would not work. For new holes, I would go with a pilot drill version just because the bit stays together. This unit consists of 2 important pieces (drill and guide) and one convenient disposable piece (a sticker that helps keep the guide from moving). Eventually I will run out of stickers and probably lose the guide. I only need this type of tool once every 5 years…
Agnes Quitzon (verified owner) –
Drill bit worked pretty good. Hard to get started but once started this bit worked the best out of the three I tried. On the sixth hole the most of the diamond tip was pretty worn had to finish last hole with a different bit. You will have a mess with water but if you lay some towels out it is a easy clean up. Well worth the price.
Dusty Kreiger (verified owner) –
This bit worked extremely well making holes in porcelain tile, for the first 2 holes. After that, the grinding surface on the bit was completely gone. I had to purchase two additional bits to drill the remaining 4 holes.So, this product works well, but don’t expect any longevity out of this item.
Mitchel Jakubowski (verified owner) –
Cuts through porcelain tile fairly quickly. A little messy to use.
Linnie Stroman (verified owner) –
The adhesive does not like to be wet and will not hold up for the full hole, re-enforce by using duct tape. The three holes in the water holder give you about 20 seconds of drilling time before you run out of water. Cover one of them with eletrical tape. Takes a good 10 seconds to assemble the package in place. So assemble it first – THEN fill the water holder. Drill for about 10 seconds, then back off – don’t overstress the bit. It’s really a pretty horrible rig, but it gets the job done, and for 10-11 bucks, I can’t really complain.
Estevan Franecki (verified owner) –
Worked well, but when you have to use one adhesive patch per hole, I’ll need replacements. I didn’t see any at store.
Billie Brakus (verified owner) –
I had tiled a back splash and failed to leave enough room above and below a couple of outlet boxes for the cover screws. This drill did the job. Because I was working around electrical boxes, I could not set-up the included water cooler. I stopped every so often and dipped the drill bit into a bowl of cool water to keep it from over heating. A word of caution here. I had to buy a second bit to finish the job because I got impatient with the first and kept it in the hole too long. It overheated and the adhesive that holds the diamond grit to the tube melted and I lost all of the grit on the cutting edge. One other curious thing, I wanted a 1/4 inch bit, but the 5/16 was a dollar cheaper, so I went with the 5/16.
Diego Toy (verified owner) –
Plastic box does help securing the drill bit. However the plastic is flimsy and cracked easy. The heat melted the plastic tube as well despite the dripping water. I got 5 holes drilled on a 3/8 porcelain tile. At the end the diamond head is flattened and the drilling time is longer. In summary, it is an essential part of the small task and saved me money not to find a contractor. Just be aware of the quality and don’t expect durability.
Armando Lueilwitz (verified owner) –
Great product and improved too. Run drill around 300 RPM, keep it wet and it works great!
Annabelle Rowe (verified owner) –
Good product. Worked as described. I recommend this product.
Juvenal Turcotte (verified owner) –
The QEP diamond tipped bit worked extremely well going through the tile i had to drill a hole through.
Aaliyah Aufderhar (verified owner) –
Really happy with the performance of this diamond hole saw. It cut thru the tiles with no problem, giving the tile a good clean and round hole.
Lesley Torp (verified owner) –
Not sure why the negative reviews on this. Used it to drill four holes for a shower curtain rod without a hitch. Be patient, go slow, make sure your surfaces are clean and dry so the adhesive sticks and you’ll have a gold result, too.
Bart Oberbrunner (verified owner) –
What a God-send. I tried drilling in my porcelain penny-round tiles with a masonry bit, and when I discovered the futility of that I started searching around for the right tool–and I’ve found it in this one. Almost like butter (well….) compared to the other bit.I found that the stickum labels that “adhere” to the tile wall really were hit-and-miss (probably because my tiles were so small, and the grout lines didn’t stick well), so that was frustrating. And… when I lined up the tiny drip holes with the slot in the drill guide the water ran through too fast–so I reversed the drip holes so only one of the tiny holes aligned with the slot (very slow drip), and that seemed to work well. Beautiful 5/16″ holes in my walls, with minimal muss and fuss.Quite a relief to have the right tool for the right job!
Rollin Nienow (verified owner) –
cut hole in tile without damage
Scot Kuhn (verified owner) –
Worked as advertised in porcelain tile. Drilled 6 holes with no issues. Would definitely recommend.