💎 Drill like a pro, shine like a diamond!
The JINGLING 2mm Diamond Drill Bits set includes 20 precision-engineered bits with diamond powder coating on carbon steel shafts, designed for clean, ultra-fine holes in glass, ceramic, tile, porcelain, and stone. With a 42mm length and 2.3mm drill depth, these bits require water lubrication for smooth, chip-free drilling without the need for pilot drills.
W**N
Great Drill bits and a good price!
These worked well on porcelain tile in the shower. They cut like a dream.
S**X
Helped remove a stuck bolt quicker than expected
The tip of my bolt extractor snapped off when using it on one of the bolts on the underside of my lawn mower deck (the bolt head broke off), the bolt was old and rusted. Two days of penetration oil didn't do enough. So, the bolt extractor was used to get the bolt out...that was a no-go when the tip snapped off and was fully stuck in the pilot hole.These bits were purchased to see if they'd help in wearing down enough material to get the bolt extractor tip out before I drilled through the bolt and re-tapped it. The extractor being a far harder steel made using my usual drill bits a no-go in attempting without something like diamond coated hole saw bits. So, with as many as come in this pack, I figured why not? It's cheap and a useful test.I went through about 4 of these, ensuring I kept the bits cooled with a container of water (dipping the bit in ever ~5 seconds of drilling), over the course of about an hour. Gotta go slow, don't apply more than a very light pressure if any, let the hole saw do its thing by abrasing the metal slowly. Worked great, the extractor tip fell right out eventually, and I've got a bunch more of these for the next time!
A**R
Dimond drill bits.
Didn’t think they would cut through stone this fast and nice. Hold up great just go slow.
M**R
Drill bits for rocks
Nice value for the money
R**N
They work
I have drilled hundreds of stones with diamond tip drill bits. These work really well in a fraction of the time. The durability is comparable to all of the other bits I have purchased if not better. I think they are a good value for the money.
S**E
Not good
Took 4 bits to get 1 hole drilled
P**E
Does the job, but if you want to use it on porcelain, it's 1 drill bit per hole.
Got the drill bit and start using it to drill my porcelain tile floor. It is definitely the right tool as normal drill bit hardly makes a dent on my floor. As I start using it, I found 2 issues:1. The drill bit wears out on each of the hole that I drilled. Basically, half of the tip was gone and it's no longer sharp enough for the next hole.2. I melted 2 brill bits when I didn't stop in the middle of drilling. If you put on high speed, the drill bit will melt in less than 2 min. If you put on low speed and didn't stop after 3 min, the drill bit will start to bent as it gets soft.I'm not complaining as these drill bits are fairly low priced and I don't mind throwing away the bit after 1 successful drill. Just make sure you don't have the expectation of using it over and over if you are drilling hard material such as porcelain.
J**O
Works well
Works great for drilling holes in through ceramic bisque
Trustpilot
1 day ago
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