Dry Diamond Drill Bit Set,BGTEC 5pcs 1/4" 6mm Hole Saw for Granite,Marble,Masonry, Concrete, Tile/Ceramic, Glass, Hard Plastic,Vacuum Brazed Diamond Core Drill Bit Kit

These worked well drilling through 1/2 " tile, 1 bit worked great for 6 holes before I changed out for a new one. I would say these hold up pretty well, are well made and worth the money. Go slow and keep water to it and they will last for a good amount of boring holes. I did use a smaller pilot to start a hole, then used this to round out the spot before plunging in so not to stray off course.

Excellent quality. I was able to drill 8 holes in 3/8 porcelain tile to install a shower door. The first drill bit lasted 7 holes and went through the porcelain very easily. To keep the heat down, a second person was spraying a small stream of water with a garden sprayer. I highly recommend these. The last time I bought a single drill bit from home depot for the same cost of this set if 10.

These draw bits get the job done, but the amount of diamond on the end of the drill. Bits is very minimal so the drill ability of it is OK don’t expect it to be faster. just because it has wax inside of it doesn’t mean that having water is not better.

The carbide bits in this set are fantastic. I had been using other carbide bits to drill holes in glass plates for tiered assemblies and they were marginal at best. 2-3 plates per bit. Tried these bits and they drilled thru glass fast and clean. 10+ plates easily per bit.

Was trying to drill multiple holes in bathroom tile. Must be porcelain because it is extremely hard and thick stuff. After wearing out a bunch of carbide tipped drills and struggling to get thru just a few holes I bought these in desperation. Worked very well. I center punched and started with a 5/32 porcelain plus drill from ARTU and then followed with a 1/4" to about 1/16" deep at he shoulder. Then I went in with these diamond drills and was thru each hole in only a couple minutes. I cleaned up the holes with a standard 5/16" tile bit. Only thing to watch is that these can wander if you are not holding the drill straight. You need to rock the drill to get the chips to flow out of the hole. One drill has already completed 5 holes and still cuts well. If you need a very accurately located hole it still might be better to go with the Porcelain Plus line from ARTU but it will take longer and you won't get thru more than one of two holes without resharpening.

used these today. drilled 11 holes so far thru thick porcelain tile, and have only used 1 bit and it's still going. these are way more durable than I read about. Maybe folks aren't wetting them. I just dip in water every 8 seconds or so. this keeps them from overheating and dropping their grit.

Wow!!! 4 holes with a single saw bit in under 5 mins thru hard porcelain wall tile. The last hole did take a bit longer then the first as it the bit I imagine began to dull out a little bit. But a HUGE time saver!!! It would take me more than 30 mins with wet saw bit (and a helper spraying water and clean up) and possibly 2-4 bits. These saws rock and for the price, even if they only last each 5-10 holes, they would pay for themselves in reduced labor!! Recommend for DIYer!!!!!

They worked for cutting holes in plate the first one cracked a little because we are inexperienced at this You need a steady hand and electric drill . It slides off the plate but we put a plate in a plastic bowl with wet towels to hold the plate we used tape on the bottom of the plate to help not crack and we used the water method to drill the hole . so read up on that. Do i think there the best out there. I really don't know, but we did 7 plates for a Christmas project with a few tries. Experiment on a cheap plate first.I like that it had extra bits. It's good price for beginners.

Acheté pour faire des trous dans du carrelage, le rendu est parfait: ni bavure ni éclats.

Very satisfied

Great value for money , good quality did the job perfectly for 20mm porcelain tiles .

Excellent quality y no es desechable como las baratas

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