Customer Reviews for Milwaukee 3/8 in. Diamond Max Hole Saw

Although not in the stated web location in the store, my husband had an easy time assembling and using it! Worked great on my large ceramic planter!

Works and cuts good. Would definitely recommend to someone else!

The hole saw cut the granite countertop easily. Would purchase again if I had to, but I won't due to it having a lifetime warranty!

I actually made 42 tile holes with 1(one) bit. I installed 5 ( each bar needs 6 holes) ADA shower bars plus 2 tilt up handicapped toilet bars( each needs 6 holes). The secret was to cool the bit very OFTEN (I just dunked it in cold water from time to time and go easy on it so it won t overheat. Also, I cleaned the mud accumulation with a steel wire and later with just the right size nail. The red paint is off almost completely but the abrasive part is still in great shape. Because I have another project almost identical, I bought another bit from HD ( saw a price increase in a few months) but if the old one will still deliver performance I will go for it first. Great product with great result. Buy it, you won t regret

This is a “must-have” for drilling porcelain tiles! I installed a frameless glass shower door which required 1/4" holes for the hinges. I’ve got plenty of experience drilling holes, including in masonry, but this was the first time in porcelain. Regular carbide tipped drill bits won’t work, or at best will burn out quickly. The “Milwaukee 1/4 in. Diamond Plus Hole Saw W/ Arbor” is the answer. I was skeptical at first. It’s more expensive than masonry bits. And it’s not pointy like a drill bit. Instead it’s a small cylinder with diamonds fused to the round tip. How do you even get the hole started? It’s actually not difficult, but completely different than regular drilling. Here’s what I did: - Go slowly - Get a spray bottle full of water - Set the drill on the lowest speed setting - Hold the Hole Saw at a 45 degree angle and very gently touch it to the tile - If you push hard it will skitter across the surface - As it spins (again, slowly!) it begins to etch the surface of the tile until there’s a groove - Continuing to spin the drill slowly, slowly tilting it to 90 degrees - Now you’ll have a shallow, round cut which makes it a lot easier to keep the drill straight - Begin spraying the hole with water as you continue drilling - You can spin the drill a bit faster now, but not still slower than you would a regular bit - Oscillate the bit as you go (roll it around in the hole) - Be patient. Did I mention to go slowly? ;) - Keep it wet - this preserves the life of the bit - Stop frequently to clean the grit from the hole and the bit - It gets easier with practice It took me about 10 minutes per hole in 3/8" thick porcelain tile, but after 6 holes it’s still cutting at the same speed. I don’t know how many it’s capable of, but it can definitely do more. To preserve its life I switched to a regular masonry bit once I was through the porcelain and into the mortar and backer board. Highly recommended. Model # 49-56-0505

Best drill bit for drilling tile. I had thin geometric tile I really was concerned about cracking or breaking. most mortar drill bits chatter and can break tile....this has a diamond round head that gently cuts through. The only caveat I make is that I made a jig of scrap wood with two pieces of sticky carpet pads cut from the carpet squares to press against wall. drilled a hole through the scrap wood to hold the bit steady...it tends to walk if held without something to steady the thrust. I marked the tile, lined up the marks through the hole in the jig, pressed the jig tight and inserted the diamond hole saw. It cut perfect aligned drill holes through delicate tile without issue. better than mortar bits I have used, just need to keep initial cut steady. I had to install this vent assembly on new tile. best drill bit I have used for drilling tile, well worth the money.

It didn’t do it’s job period it burns really easy

Project finished in 10 minutes!!! I just needed the right tool!!!

This puppy drilled through some very thick tile like butter! Made installation of a shower spray wand holder a breeze! This is my go to brand every time!

This bit did a great job cutting through the porcelain tile I just installed. I needed to re-install the brackets for a set of folding doors. With a steady hand and low rpms on the drill it is easy to get the hole started. Once you get a bit of the hole bored out you can increase the speed. This drill bit easily drilled through the tile. The only reason I gave this bit a good rating instead of excellent is the porcelain would clog the hollow center of the bit. I had to remove the bit and use a finishing nail that I slightly bent to force out the clogged porcelain core.

This mini hole saw was amazing. I needed drain holes in some adorable self watering ceramic pots. An unglazed pot set in a glazed pot for self watering. I ground (not drilled) a hole in inner pot for a wick watering system. My African Violets are very happy now. I had tried a few other methods that were not fun at all. Just the wrong method for grinding through unglazed ceramic.

I abused this bit to core out a broken 5/16" Stainless Steel bolt that was galled in a 1/4" SS plate. It took hours and a constant flow of water and three bits but it worked. I used both the Milwaukee and Lenox diamond core bits and they both cut at the same very slow speed. Of course, these bits are intended to be used to drill tile and not SS. The photos show a 5/16" SS bolt being cored out of a SS plate inside of a 3.25" thick door. Drilling through 1/4" of SS with this bit is not a fast process. I estimate that I drilled for 4 hours to remove the bolt.

Excellent tool

I recently tiled my fireplace and needed to remount my TV and Mantel. I purchased this Hole Saw to drill the holes for the wall anchors. It was so easy to use, and made such a great cut. I highly recommend this to anyone who is looking to drill through tile.

It works flawlessly, I just wish it wasn’t almost $30 but u get what u pay for !

Just keep it wet as you drill and clean it after use, works great.

Works GREAT. I burned up three different bits for concrete, tile and assorted other claims, then I bit the bullet (yeah, 13 bucks) and bought the real thing. YES, Granite IS HARD- that's why they use it in grave stones (it LASTS and resists damage) I used a squirt bottle with plenty of water, and with some effort, plunged through 2 inches of solid, HARD surface. Just make sure you have the right measurements first, then check again before you drill. (EXACTLY the right spot- no room for fudging.) Thanks HD, and thanks to Milwaukee Tool once again. The screw and plug are under this shower bracket.

Excellent cutting must use water though for longevity and clean cuts excellent with all hard surfaces would buy again anytime

It works fine... Used it for drilling into ceramic tile on a wall. I wish it had a center guide bit. It's a bit tricky to get it started. The larger size hole saws have a pilot bit.

We used the 3/16” and the 1/4” diamond bits to install a pin mounted logo with standoffs on a porcelian tile wall. The logo required us to drill 107) 3/16” holes and 42) 1/4” holes. It took us several hours to drill the holes with a 18v cordless but these drill bits worked perfect and each hole came out really “clean”. The trick to making these diamond bits last is having a helper spray soapy water while you drill. We only went through 3) 3/16” bits and 1) 1/4” drill bit. The price is good for an excellent product and I would absolutely recommend these bits to anyone, especially those who are tired of using and burning blue pointed tile bits.. :)

Apparently the Diamond "Plus" designation means something other than diamonds? For less than $20, I really didn't expect actually diamond chips to be part of the mini hole saw... But it did what it was advertised to do, cut a hole through a glass bottle without shattering the entire bottle. I used a drill press to turn the hole saw, but I suppose a handheld drill would work as well. I did drill at a bit of an angle as the cold water bath I had the bottle in did not allow it to lay flat. You can see from the second image the results of that. To fix it, I used some clear silicone caulk to fill in the divot. Also I drilled slowly to make sure not too much pressure was applied to the glass at one time. Lesson learned for me: Keep the bottle flat when drilling so you don't take an unexpected chunk out of the glass. If this happens, use clear silicone caulk to fill it in.

Don't think I've ever reviewed a drill bit before, but this one is special and since I took the time to research it I should at least share my experience and learned tips. Bottom line, it works great on porcelain tile, cuts clean and smooth, but it takes some time, patience and planning. Used mine for 4 holes to mount a mirror and bit looks good as new! Bit also has a side hole to remove the tile core you drill out, great design and quality! 1) Set your drill to Slow/Low Speed. 2) Start your drill bit at a 45-degree angle to the tile to get the bit to bit in the correct spot. 3) Go slow with a good grip and steady pressure on the drill. 4) Keep a wet sponge above or next to the hole to keep it and the bit wet. 5) Take breaks between holes! That's what she said :P Seriously though, you will get tired especially at 15-min per hole.. insert another joke.

I purchased this to drill a hole in my granite for a reverse osmosis faucet. I was most worried about the initial contact with the bit/granite and the bit "travelling" on the granite causing damage. But going down at a 45 degree made an instant ridge for the bit to set into as I raised to 90 degrees and stayed very stable. After that it was slow, steady and worked great - I used my kid's play-doh to create the water pool for keeping the bit cool.

If you want to drill porcelain and marble tiles, this is the drill. About a minute per hole including stops to spray and wet the hole with water. The only thing to watch for is accuracy lies at the initial scratch and that required planning. Since you start at 45 degrees the bottom of the hole will be marked by the drill.

This bit is the best and most efficient drill for glass and porcelain tile I have found. I used it to install grab bars in glass mosaic tile, and it worked great. A nice clean hole to anchor to the studs through. Perfect! I started the holes like the directions said (start at an angle) and dipped the bit in water every so often.

Slow work, but it does the job. Depending on the density of the granite, it takes me 20-45 minutes to drill a .5" hole 1.25" deep. New to drilling granite, I was concerned with how many holes I could get from the hole saw before losing the diamond coating. I am at 6 and counting. Better than I expected.

Amazing drill bit, did 16 holes still going strong....

Worked well! Cut right through a porcelain floor tile with it and made a nice hole for a toilet line. I added a little water to the cutting area and didn't rush it too much to keep it cool.

I needed to drill into 1 1/4 inch granite left over from a countertop. I had never attempted to do this before, so it was a learning experience. The Milwaukee diamond hole saw lasted for four holes, and I used water as recommended. Apparently, I drilled too hard and too fast, expecting to be done in a few minutes. The first hole took 45 minutes, the second about an hour and the third over an hour and a half. The fourth hole would have taken over two hours, but I purchased another bit (brand B) to finish the hole. I have learned to take a slow, steady pace using water. Flush the hole from time to time and clear the plugs in the hole saw. Key: accept the fact that this is a slow process. A 5/16 inch hole saw does not have much cutting edge. Maybe brand B will last a little longer now that I have taken a more moderate approach.

If you follow directions [Start at 45 degree angle, dip in water every 30-45 seconds and oscillate tool while drilling], this bit works amazing. Way better than standard "all-in-one" masonry/tile bits and triangle bits. Took 2-4 minutes to drill smoothly through 3/8" hard tile. Drilled 17 holes to install glass shower door, bit seemed to work better once the red paint was worn off. Still in great/new condition, minus the paint.