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anyone using 3" ROLOC style flap disks?

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anyone using 3" ROLOC style flap disks?

Postby clavius » Tue Feb 28, 2017 10:59 pm

Any of you guys using these? Just a while ago I purchased a 10 pack of these:

https://www.amazon.com/Neiko-Roloc-3-In ... B007SX2N3E

At $15 bucks for 10 disks and free shipping (tacked them on another order) it seemed a worthwhile gamble. I have just started using one on my small right-angle air grinder. I must say, for a small 3" disk, these seem to work great thus far. They are quite aggressive and the small size makes them really handy for working on small parts and getting into tight spaces. I really like these.

Only one gripe: When I spin these up on my grinder, and do my work they are fine. The problem comes when you stop the grinder. The first time I let go of the lever on the grinder, the rapid deceleration of the grinder spindle coupled with the mass of the flap disk caused the flap disk to unscrew itself from the Roloc backing disk and fly across the shop(!). A bit unsettling, to say the least.

So for the time being, I have just tried to remember to either have the disk still on the work piece when I release the throttle lever, or touch it to some piece of scrap on the bench and stop. And I still ended up chasing the disk around the shop more than once. Anyone have a better solution to this annoyance?
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Re: anyone using 3" ROLOC style flap disks?

Postby cj737 » Wed Mar 01, 2017 1:07 am

I use those and the ScotchBrite Rolocs in varying grits. Not had the problem you're describing. In fact, I had to perform near surgery to extract a broken backer from the grinder when I caught an edge to aggressively.

I use both 2" and 3" pads in 4 differing grits. Love them!
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Re: anyone using 3" ROLOC style flap disks?

Postby weldin mike 27 » Wed Mar 01, 2017 1:49 am

Unlucky about the loosening discs. My solution for the broken of thread on the plastic ones is to heat a small piece of flattened steel (small old screwdriver shape) push it into the plastic and let it cool/solidify. Then undo it as per normal.
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Re: anyone using 3" ROLOC style flap disks?

Postby MinnesotaDave » Wed Mar 01, 2017 7:54 am

Definitely have the same problem. When I release the trigger sometimes the wheel goes spinning across the shop.

It finally just snapped off. Then the next one snapped off while in use...

Love using them on my right angle air tool - but don't like the attachment issues.
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Re: anyone using 3" ROLOC style flap disks?

Postby Poland308 » Wed Mar 01, 2017 8:20 am

Is your rubber backing plate worn to the point that you don't have good tension?
I have more questions than answers

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Re: anyone using 3" ROLOC style flap disks?

Postby MinnesotaDave » Wed Mar 01, 2017 3:24 pm

Poland308 wrote:Is your rubber backing plate worn to the point that you don't have good tension?


Unfortunately no - darn thing is in nice shape.

Considering putting skateboard tape on it or something.
Dave J.

Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

Airco 300 - Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
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Re: anyone using 3" ROLOC style flap disks?

Postby Poland308 » Wed Mar 01, 2017 7:32 pm

My boy is into skateboarding so you can get clear tape if you want.
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Re: anyone using 3" ROLOC style flap disks?

Postby MinnesotaDave » Wed Mar 01, 2017 8:07 pm

Didn't know they made colors. Thought all traction tape was black :)
Dave J.

Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

Airco 300 - Syncro 350
Invertec v250-s
Thermal Arc 161 and 300
MM210
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Re: anyone using 3" ROLOC style flap disks?

Postby clavius » Wed Mar 01, 2017 11:42 pm

It is really an annoyance more than anything, though flap disks flying around the shop is not ideal. The thread on my mandrel seems ok, but I had a similar though that I my try putting a wrap of electrical tape or something around the threaded stud on the disk to see if I can tighten it up and secure it better.

Beyond that, these things are pretty great.
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Re: anyone using 3" ROLOC style flap disks?

Postby weldin mike 27 » Thu Mar 02, 2017 5:54 am

Maybe those are designed for a reversible sander. I've used them with no issues.
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