SE DT220R Diamond Shank 20 Piece Review

In a word, it is USELESS, the "diamonds” in these tools need to be glued with superglue. A quick use with one and they're gone. I tried three different parts and threw away the rest. Of course they are cheap, but they are complete chinese junk. Don't waste money!

I ordered these diamond core bits to use in my Dremel for drilling sea glass. They work, but it takes time to drill a hole. The drill bits in Dremel work fantastic and I love making jewelry that no one else can.

If you are working with very soft materials these will work. Hard/dense wood will eat them! Don't worry about the metal. I chewed on it and tried to work on a small piece of solid wood. I had to go and buy the best set from the local hardware store.

Excellent for drilling holes in glass. Sure, they don't last long, but neither do the $20 ones I bought from a big company (for 1 bit). At least there are a few of them I can use when one of them wears out. Bits are tricky to drill holes in glass, but they work and are worth it. I've bought several sets over the years.

As the price would suggest, you can use it 6-8 times or more on hard materials like stone or glass, but it's great value for money. I bought this to poke a hole in my windshield to prevent a crack from growing and also used it to open the center of a star crack to effectively pump windshield repair glue. Almost no vibration and no jumps when drilling on glass

I love diamond bits and they are great for what I need them for. I don't know if I'll use them all because some of them are really pointy and I felt like he was just digging into my plexiglass project. On the glass is normal (not tried). Basically, I only used round tops in all sizes. The higher the speed on my Dremmel the better, started low but got to 25-35 which was better because they bounced a lot on low. They didn't seem as sharp when I got to the second half of my project, but it still…

They work great with my rotary tool and flex shaft attachment. I had them carve, etch and generally sculpt rocks (small pebbles and river rocks for art). They worked great and I keep finding new uses for them. My mother-in-law makes stained glass and needed some diamond drill bits (she has a large glass cutter and a dremel). While waiting for her to arrive, I suggested she use my set of diamond crowns so she could try them out. She saved them and sent me $ to buy more! LAUGH OUT LOUD. Excellent