Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers praise the drill bit for cutting cleanly through tile, glass, and porcelain without chipping, with most reporting excellent results on demanding projects. Many highlight durability under proper use, noting minimal wear after multiple holes when water cooling is applied. However, some report premature failure including bent shafts or twisting after few uses. Success depends heavily on technique—starting at 45-degree angles with low RPMs and steady pressure yields consistent performance. Despite some quality concerns, most customers who followed proper methods found it reliable and plan future use.
Customer review summary generated by AI, including incentivized reviews.Does not bite into granite like others al
Would Not RecommendProduct will not bite into granite like others and is slightly out of round causing it to walk and damage product being attempted to make a hole
Worked !
Would RecommendHad to drill holes in tile to install towel rods , towel hook and medicine cabinets 10 holes in all. It did a good job it took some time you have to take your time and don’t rush it. I found out it cuts better if you keep spraying water on and in the hohe so as to not heat up the saw to much. I think it has a few more holes left in it’s life so for the fair price it’s well worth it. Also make sure you clean out the hole in the saw (bit) and it will go a little easy.
Highly recommend for glass tile
Would RecommendWorks as advertised! Used this drill bit to install a glass panel into our walk-in shower. We have glass tile and it worked with relative ease drilling 4 holes. I suggest watching some YouTube vids to familiarize yourself with the process as it takes a lot of patience when drilling through glass without cracking it.
From 1_SLASH_4-in Dry Diamond Core Drill Bit for Stone, Stone Verified Purchaser
Doesn't work well with porcelain tile
Would Not RecommendUsed on porcelain tile and literally had to wear a hole thru; only one hole per drill bit and it bent. Recommend Milwaukee; cuts much better with porcelain
From 5_SLASH_16-in Dry Diamond Core Drill Bit for Stone, Stone Verified PurchaserVerified Pro
Please feel free to give us a call at our Kobalt customer support number at (833)514-1290 so that we can help with this problem you encountered. We w... Read More
It works!
Would RecommendHandy person but no experience cutting into countertops before. Was able to get perfect cut into a quartz countertop. Angled going in, straightened out, stopped intermittently to dip in water and used the shop vac to grab dust. Got through about 1.5 inches of quartz in 10 minutes of trying.
Disappointed in this product
Would Not RecommendI bought this bit to use for the two holes in my new walk-in shower for the main showerhead and hand-held showerhead.The tile involved is polished porcelain about 3/8 in. thick. All I can say is that it did ultimately get the job done, even wetted, but I believe that it's worn out. The process was very slow. I needed to finish the holes on the back side of the tiles by using my 4-1/2 in. grinder with a diamond blade.
Super clean cut
Would RecommendSuper clean cut… I was worried about a chip and having to replace the tile, but this cut in perfectly so I could place an anchor. I used this for a shower rod and worked perfectly
Good for cutting in shower heads.
Haven’t used it yet, but Lowe’s is pestering me to review it. It seems to look like every other home saw and it measures true, so no complaints. That’s all.
Worked great on porcelain tile!
Would RecommendI had to make 2 cuts for my tub and shower holes. It was difficult to line it up to the exact spot so I drilled a hole iinto a scrap piece of tile. I used it as a template and clamped it to the piece iI needed to cut. It was a perfect cut each time.
fast cutting
Would Recommendcut clean and fast with no chipping, the hole saw is rugged made and the blue paint is very durable. make sure the drill you are using has a nice chuck to keep the hole saw tight
Dear Lowe’s Customer,
We would love to know some details on the size of material you were working with and tool you were using, so that we can b... Read More