flintronic Diamond Drill Bit Set, 15PCS(8mm-50mm) Carbon Steel Hole Saw Cutter Tools Set for Glass/Tile/Ceramic/Marble/Porcelain Cutting

Great product, it cut through the tiles easily (Ceramic). One tip, drill a pilot hole with a 2 or 3mm bit to guide the drill bit on the hole cutter.

was sure on this item as seemed very cheap , but I only had to cut two holes in tiles ,so took a chance. I must say it was brilliant and cut with ease , I did how ever had a hose tricking water at the time of drilling . The pilot hole helped me as marked from rear of tile and cut until the pilot hole came through , then flipped the tile and drilled from front .

Currently renovating one of my bathrooms and needed to cut some holes through a polymarble vanity top. Amazon was the only place I could find the size hole saw I needed at short notice.The centre pilot is the wort part, fitment is loose and a little unreliable but it is good for getting the cut started compared to starting a hole saw on its edge and standing it up.I would recommend using the pilot until you have a decent groove started with the hole saw then ditch the pilot.Finished hole had a good finish and cutting time was respectable. I wouldn’t want to use this for more than a couple holes but great for just the single job.

I bought this 35mm diamond hole cutter to go through a 20mm thick solid porcelain slab to install a tap. It’s a tough material to get through and thought I’d give this a go as the bargain price was worth the risk. Sadly the pilot bit in the middle of the cutter is completely useless, as it melted and disintegrated within 10 seconds of use. I removed the pilot then used the main cutter by holding it at an angle and slowly tilting up as I went. Very impressive cutting speed as it easily went through the porcelain in about 15 seconds. I’ll give this a 5 star rating despite the pilot drill failure as it did the job I needed without spending too much. Couldn’t see any wear on the diamond edge, so it would appear this may last for many more jobs than I would have expected.

It's value for money and only suitable for small DIY projects cuts fine trough plastic and composite aco drain but struggles with cutting tiles!

Amazed at how well these worked for only £11... im a diy'er and really hate tiling... these were amazing to use. Cut easily, gave perfect hole where i needed it and also cut within 1mm of the edge without breakage. Had the missis spraying the garden hose every few seconds to keep cool/clean. Glad i got this assortment rather than expensive alternatives in screwfix etc. - would highly recommend.

There is something wrong about the design of these drill heads....they needs a central point to maintain their position. I think that they turned out to be a waste of money.

Worked well on tiles and drilled plenty of holes