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💎 Cut like a pro, drill like a boss!
The DaduoRi 25mm Diamond Hole Saw features a triple-layer diamond coating and a removable pilot bit for precision drilling. With a 35mm cutting depth and a standard 3/8" triangular shank, it effortlessly cuts through marble, granite, ceramics, porcelain tiles, glass, and light stones—making it the go-to tool for professionals demanding clean, deep holes without extra guiding tools.



| ASIN | B0BWYDJL7T |
| Best Sellers Rank | 5,035 in DIY & Tools ( See Top 100 in DIY & Tools ) 20 in Hole Saws |
| Brand | DaduoRi |
| Colour | Gold |
| Compatible Devices | Standard 3/8" Drills |
| Compatible Material | Porcelain, Ceramic, Tile, Marble, Granite |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,482) |
| Included Components | hole saw*1; pilot bit*1; wrench*1; |
| Item Thickness | 0.06 Inches |
| Item Weight | 0.08 Kilograms |
| Manufacturer | DaduoRi Tool |
| Manufacturer Part Number | DaduoRi 1 inch diamond hole saw-022 |
| Material | Diamond |
| Model Number | 25mm diamond hole saw |
| Number of Teeth | 25 |
| Set Name | Single |
| Style Name | 25mm |
| Unit Count | 1.0 count |
I**E
20mm diamond cutter
Good delivery, great product, in it's own little storage case. Cut hole clean & precisely in tiles for 15mm copper pipe to install a shower.
J**E
Excellent product
Excellent product, cut through the tiles like a hot knife through butter, good value for money
A**Y
Great hole cutter
Great on ceramic tiles. Easy to use, excellent result. Just go slowly and spray water in the cutting surface occasionally.
M**.
Left a clean hole .
Only used for one hole to access a tiled in isolation valve so dont know how.long it will last . It did cut okay with a clean finish . Able to use the inner cut out of tile as a plug to the hole i had to cut .
P**L
Makes easy work installing pipes throught tiled floor
Bought to install radiator pipes through tiled floor. Lubicated with water these went through the tiles no problem. Nice clean hole. Good value.
D**S
Cuts well
Done the job cutting through marble no issues
M**E
Worked excellently on granite worktop.
Works exactly as described. Cut through a granite worktop like butter.
R**W
Poor quality
Poor quality and the shaft is out of true hence the cut is less good than it should be.
M**A
Excelente
A**H
Works well for black pvc drain pipe through tile.
S**H
We had to drill a hole in a granite counter top and this worked great. The pilot guide thing in the middle would not go through the granite, so we took it off, and no problem. We were not able to use water to cool it, so we drilled it in increments to let it cool, and that worked well.
G**K
I used it for drilling kitchen countertop which is quartz and the drilling was ease
J**B
This was a one time repair. If the saw I chose at Amazon cuts one hole properly, I’m happy! “I’m happy”. This 1.5” saw did great! Be sure to read included instructions about pilot drill use and saw cooling. It states to remove the pilot drill after the saw has started the cut. This could be a challenge to keep saw from hopping out of hole location and damaging area next to the started circle. Suggestion, clamping thin wood with same hole cut in it over the proposed hole location may keep saw where it belongs while drilling. My story if interested. I had mildew at bottom of wall under the diverter in the shower. Bleached it and came back so time to investigate before we got sick from mildew. I lucked out and chose exact (6x8) tile to remove for the inspection and repair. There was a slow constant drip drip at the diverters plumbing connection at hot water side. Made that plumbing repair and then dropped bag of Damp-Rid on a rope into the wall until it hit bottom. Got considerable water in the bag over 2 week period. New bag, same, no more water and no more mildew appeared, time to close it up. I made a cardboard template where to cut hole in a tile saved from home construction, then marked the tile on tile back-soft side. See pics. The cut through the hard glaze was quick, I doubt saw got too hot so cooling the saw probably wasn’t necessary in my case but made cut in container of water anyway. Drilled from the soft back side. Some minor chipping occurred, perhaps placing tape over the glazed side would help.
Trustpilot
5 days ago
2 weeks ago