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Your cart is empty.Product Description
72 Pieces Abrasive Mounted Stone Grinding Bits
Materials: Corundum Sand + Metal.
Design: Bullet shape.
Shank diameter：3mm( 1/8inch).
6 Sizes: 12/10/8/6/5/4mm (12 Pcs each size).
Tips
1. When installing the grinding head, please make sure the chuck can hold 3mm shank. Meanwhile, you can use a special wrench to tighten properly and check whether it is firm and strong.
2. Wear protective equipment correctly during operation.Idling for 1-2 minutes after installation to make sure everything is normal.
3. During the grinding, the operator should stand on top of the workpiece to prevent it from flying, chipping and hurt.
4. Use the grinding head, the force should be increase slowly. If the force is too strong, the grinding head will get stuck and broken,even the machine motor will burn out. The grinding bits should maintain about 30° and move it back and forth at a uniform speed.
Oldman
2025-07-15 12:00:15
I chose this item because there were 60 pieces and I anticipated that they would break down quickly. They lasted in use far longer than previous similar grinding bits I've used (grinding down steel welds) and I have over 50 remaining for my next project.
Eme522
2025-06-10 11:55:43
These were a good price for the amount you get as I compared them to others in stores. Work well and bought some more.
glenn koester
2025-05-31 12:22:32
They work fine
Fourvalv
2025-03-24 15:04:53
1.) The stones may be useful for very light grinding on soft metals or very light pressure. Unfortunately, in my usage the stones failed. I was using the product in a standard "Brand Name" rotary tool, trying to smooth some metal surfaces in a tight spot. Unfortunately, the stones separated from the shaft. The first few 'flew off' at high revs. After altering position, I was able to stop while they were only slipping on the shaft, rather than flying across the work area. (Picture shows some that had separated and some that were still attached but were spinning on the shaft. I'm still finding the disconnected stones.....)This is nothing but a 'guess', but I'm assuming the friction of the stone is creating heat, which is softening the glue used. The glue isn't holding up to the operating temp. (NOTE: I have not had this issue with other stones purchased.)2.) While 1.) above was the larger problem, some of the stones were also 'crooked' on the shafts creating a higher level of vibration when the tool was spinning.The stones may be good for very soft metals or plastics (if you want to use a stone) or may not generate heat if you kept your grinding to very brief (few seconds) usages.I didn't request a return since I'd used so many of them, but probably should have.I don't usually leave less than positive reviews, but in this case thought it might help people use the stones on the appropriate applications and avoid the stones for certain metal grinding. Unfortunately, this was a bad purchase.
Newt
2025-03-19 14:37:03
These bits last longer at a slower Dremel speed. There ok
Customer
2025-02-02 13:23:22
Smooth, Very Fast delv. Look good , but will they do the job?? Haven't tried them out Honestly!
steven
2025-01-10 12:09:21
I would like them if they actually stayed together. I haven’t been able to use them to the fullest due to the fact that the stone comes flying off the shaft after they get hot.
Customer
2025-01-06 19:14:18
I bought these for my wife who is a per groomer. She tells me that they work perfectly for dogs and cats nails. They last just about forever and are definitely better than sand paper disks.
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