KATUR 40mm Dia Diamond Hole Saw Diamond Core Drill Bit, Masonry Hole Saw Porcelain Tile Hole Cutter for Marble, Glass, Slate, Ceramic, Granite, Quartz Gemstone

Arrived quickly, in handy little plastic tub. At first hubby was concerned because there was no centre drill bit, and he was worried about the kick back and also the accuracy aspect. We stuck with it, because of the 2 year warrantee. Taking the attitude that if it was no good, we could send it back. Wanted to drill holes through concrete, slabs. IT WORKS. I have posted a video and some pictures, and can confirm, this product does exactly as claimed. I now have one very happy hubby, and 3 holes, drilled. I would like to add, that depending on the material, your drilling, you may want to consider the motor power of the drill. Also for added pressure and stability, a drill with a handle is a good option. We used to drill through 50mm thick paving slab.

Used to bore a hole through 12mm thick ceramic tile, then the tile cement behind that, then the breeze-block wall behind that. No sign of wear on the cutting edges even after ploughing through all that. The hole size was accurate, it had a nice smooth bore, and a piece of 40mm diameter plastic tubing slid into the hole perfectly. Since then used it on other types of tiles. It's holding up well. Keeping it cool is the trick. Drill for a minute or two then dunk it a cup of water to cool. Repeat until it gets through.

I needed to cut just 2 holes in some tiles and was reluctant to pay over £40 for a branded holesaw, when I wouldn't use it a lot. I decided to try a cheap one, as I could always return it, if it didn't manage just 2 holes. This holesaw managed to cut a plywood template (highly recommended) and the required 2 holes through, admittedly thin, tiles. I would guess that it still has life in it too. Definitely recommended, if you don't need much use out of it!

Used this on 20mm porcelain tiles. Great tool if you take your time and keep it hydrated whole in use.

Did the job, bounces a little but gets the job done, drilled 4 holes in ceramic tiles and still sharp, yet to try on porcelain. Great for the money tho. And really like the little capsule it comes in (Tiler of 20+years)

Good strong core drill used for tiles can be a bit too fierce to start you off, I made a template out of thin ply wood for a guide and held it in place with my feet and keep it cool by dipping in water every now and again

The drill was bought specially to drill holes in 20mm thick porcelain tiles which it did quite easily. It has no centre drill to help line with alignment, so I made a jig i.e. a piece of 5mm thick wood with a 50mm hole in it and clamped it in the position of the hole. I was told it would only last for the 5 holes I drilled but it is still in excellent condition.

While the shaft and drum where aligned, the diamond blocks are longer on one side making it almost impossible to hold in a drill and drill through tiles, the hole saw would make the drill wobble from side to side and even though i had a four ball bearing suction guide to stop the diamond hole saw from running off centre, the run out was so bad it forced the suction clamp to move. This ruined a tiled bath panel that i needed to drill four 70mm holes into for ventilation, about a days work was wasted plus the materials, £400.00. If only the diamond blocks has been correctly welded on then this would have been a great product as the diamond blocks appear to be good quality, as is the drum they are welded to.

Lo he usado para ampliar el agujero de la tapa de la cisterna ha ido perfecto primero he marcado el círculo con un rotulador luego con un puntero he ido descascarillando la circunferencia marcada con el rotulador luego he cogido la corona con un taladro de batería a muy poca velocidad y un poco inclinada para que no patinete echando agua constantemente y me ha quedado un agujero perfecto la corona sigue como nueva

Good

I only needed it for one use - to cut into a 1" thick quartz countertop. Worked great. Thank you.

S'use dès le premier trou effectuer. A éviter

pour utiliser convenablement cet outil: - concernant la précision d'attaque: il est souhaitable au préalable de préparer un gabarit en bois avec une scie-cloche pour bois de même dimension (voire légèrement plus grand) que le diamètre de la scie. - ensuite, placer ce gabarit sur l'endroit de la pierre à percer et le fixer fermement avec par exemple un serre-joint de menuisier - pendant le perçage de la pierre qui doit se faire avec la vitesse la plus réduite et sans trop appuyer avec la perçeuse, il est préférable d'arroser en permanence l'endroit de la découpe avec un mélange d'eau et de savon (ou liquide vaisselle), ceci pour garantir la longévité de l'outil et également pour une découpe plus "souple". C'est ce que j'ai fait avec succès dans des dalles de marbre de 3,5cm d'épaisseur. Le résultat est parfait