Diamond Hole Saw Kit for Tile and Glass, 10 Pc Drill Bit Set 1/4 to 2 Inch with Guide, Ceramic Porcelain Granite Stone Core Bits for Drill, Circle Cutter for Faucet Drain Installation

good buy. Bit i used worked great to drill hole in a counter for soap dispenser. I was able to use the templet to position the bit and hold water for drilling hole. this gives you most any size you need for a little more than buying one bit. the holder / guild worked good and the zipper carry case is nice and not flimsy. i would buy it again if needed. I used to sided tape to hold guide to counter top and hold water in while drilling. it took maybe 30 seconds to go through 1/2" Corian counter top in a camper.( bits must be used with water ).

I bought this a couple years ago and it is a fantastic set. I drilled through my granite kitchen countertop with no problems whatsoever. Just used it again for a tile countertop. It sliced through the tile in about 1 minute. I absolutely recommend.

Firstly, I am originally from the trades, am very mechanically-inclined and versed in many facets of construction. I know good quality tools from bad quality tools. Now....These are definitely not meant for trade use or daily use. I wouldn't call it a "heavy duty" drill set. But they are also not one-time use and they do work IF you know what you're doing. I guarantee the reviews that stated these are junk, broke, don't work or the grit wore away are inexperienced people who have no idea how to properly use these. I also laugh at the reviews that state how bad they are and then coincidentally say "I made sure to use water" after reading the other reviews that say to use water....BS - they did it wrong, trust me. I renovated my bathroom and tiled all the walls. I used the 5/16" hole saw to make holes for my wall-mounted vanity, mirror and tub glass enclosures (12 holes). I used the 1" hole saw for my shower head and tub spout holes. They worked fine and none broke, wore-out or cracked the tiles. All of my holes (except the shower arm and tub spout) needed to be drilled after the tile was installed, due to not knowing the exact locations of each hole. Proper planning allowed me to make sure I had studs or blocking behind the approximate locations of the holes, but the exact locations had to wait until components were ready to be hung, since the hole locations need to be precise. The secret is using the right technique....relatively slow but consistent drill speed, starting at an angle and holding the drill firm and steady just as is touches the tile (this is important, because that's when it will tend to pull the drill, take you off-target and possibly scar the tile where it won't be hidden). The drill needs to be held at this angle until a noticeable arc-shaped groove is made. Then after a slight groove is made, slowly lean it perpendicular to the tile. Once a full circular groove is made, you must stop about every 20 or 30 seconds and use a spray bottle to wet the bit and hole (or have someone gently spray as you're drilling). When the hole is done, stop the drill, remove the hole saw and use a piece of stiff wire or even a toothpick to push out the tile core and muck from the bit (That's why there is a slot in the bit). Yes - the process is a bit messy - but this is the best way to make drill the hole without damage. During the entire process, the drill should not even come close to full speed...I can guarantee that's why most inexperienced dumb-dumbs or neanderthals ruined these bits and wrote poor reviews. These are not high-speed bits (nor are most bits intended to drill through tile, glass or granite). Knowledge and technique is everything. You should practice on some scrap tiles first. If you're not up to the task, you may want to solicit some help from someone with a bit more experience and take my advice that I use often in which I echo Dirty Harry's sentiment: "A man's got to know his limitations".... NOTE: I purchased this item on Amazon for full price and have no affiliation to the seller. I try to write helpful, unbiased and insightful reviews because I also read reviews prior to making my own buying decisions. I notice many reviews lack helpful information, are not well written or give poor reviews based on not following directions, failing to read the product details prior to purchasing, inexperience or lack of skill. Writing useful reviews helps pay it forward.

I purchased in January 2021 for $44. I actually needed 3 of the sizes that this 1 kit came with. I went to several tile shops, supply houses and looked online and I found that price of just ONE of their bits was more than this set. I figured worst case scenario, I would burn them up, finish the job and pitch them in the trash! 2 years later and I have absolutely punished these bits and they haven’t slowed down a bit! I’ve used them on porcelain and ceramic tile, 2 granite countertops and the ultimate torture test was drilling through 3/4 granite tiles. I needed 4 inch round holes that kept cracking when trying to use a grinder. I decided to use these bits to drill multiple holes to make the 4” hole and it worked great! You can use the foam backing pad that holds the bits to CENTER it since the bit itself doesn’t have a centering bit. Get the hole started by holding the foam piece with one hand, fill it with water to keep the bit cool, then start the bit slowly with the other hand. I used a Dewalt battery drill and they worked great. I do keep them cool with water and low RPM’s while using them. I’ve even let a friend borrow them and they are still good. The ONLY CON: They are not deep enough to go all the way through a granite countertop. Bit is too shallow. So you can either start the top and go as far as possible then tap it out with a hammer. Or start the top and go as deep as possible then switch and approach from the bottom if you need to. For all tile including porcelain, just take your time and keep the bit wet and cool and they work and will last! Work great on tile backer board also! Definitely recommend them though!

These bits are the bomb. With most of these bits i have been told unless you buy the expensive ones for 25 dollars a piece that they will not last. I beg to differ. I have used these multiple times and have drilled holes into the bottom of many of my pots; as many as 4 holes in each pot. Have used all of the sizes and one was just as easy to drill a hole through porcelain as the other. I have also drilled holes in pots for the neighbors. I do make sure they stay wet and allow them a bit of cool down time between going from one hole to the other. When i put them away after all of my pots had drainage holes drilled they looked as good as when i took them out of the case before drilling. I love the case and how each size has a distinct matching pocket hole to fit them into. Zips up nicely and the size is easy to store. I am so proud that i can now drill holes in bottom of my flower pots and am very pleased with the quality of these bits.

Tool bore bits purchased based on ratings and package content. Just finished boring 1/4" and 1/2" holes in porcelain for mounting wall TV. Used squirt bottle constantly for lubing and drilled through the 3/8" tile with 1/2" cement backing board with no issue. Just start the bore on an angle first. Bits appeared a little lighter than Milwaukee bit bought many years earlier but indeed great value for your dollar. Looking forward to using for 1" water pipe line when installing new shower. I see no issue with using these and having such a selection for the price is great.

Baja calidad de las puntas sirven para usarse una o dos veces!!

Excelente producto, puedo comentar que se me presento un problema, el monomando de lavabo que compre, tenía un diámetro de ensamble superior al que tenía mi lavabo, por lo que con el cortador hice más grande el orificio y me quedo excelente, mi lavabo es de cerámica

Having used a few brands of these bits before I decided to pay a little more for this set however they aren't well made with poor grip to your chosen drilling device. Onnfirstbuse under cooling conditions I wore the bit out before breaching 4mm of glass. Very disappointed.

Did the job, excellent price