Author Topic: Quick-change disc  (Read 5847 times)

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Offline manta22

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Quick-change disc
« on: April 04, 2013, 01:21:01 AM »
I dug out a box of 3M quick-change abrasive discs that I've had for a long time and then realized that I didn't have a spindle to mount them on.

After fooling around with a number of bad ideas, I tried screwing the QC on to a 1/4"-20 bolt and Voila! it fit perfectly. I cut off the head of the bolt and that left a 1/4" dia spindle that fits into the collet on my die grinder or into a cordless drill. The day was saved-- I didn't have to drive into town to find a QC spindle or order it on-line.
Regards, Neil  Tucson, AZ

Offline Peter Jack

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Re: Quick-change disc
« Reply #1 on: April 04, 2013, 08:24:55 AM »
Watch out putting them in the die grinder. It likely rotates faster than the designed rating for the discs. It isn't pretty when a disc, even a small one lets go.  :-o :-o :cry:

Pete

Offline Speed Limit 1000

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Re: Quick-change disc
« Reply #2 on: April 04, 2013, 10:36:51 AM »
It can be fun to start and stop your air tool a few times then chase the disk around the shop. Air tools will unscrew and spit off the disk. :-D
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Offline manta22

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Re: Quick-change disc
« Reply #3 on: April 04, 2013, 11:37:28 AM »
Pete;

These are 1 1/2" discs that are rated at 18,000 RPM.
Regards, Neil  Tucson, AZ

Offline tauruck

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Re: Quick-change disc
« Reply #4 on: April 05, 2013, 12:58:27 AM »
I'm sponsored by Norton Abrasives and learned a very interesting fact about discs. There's a code stamped on the metal rim that gives info on build date etc. I was told that even cutting discs have a shelf life. There are products out there that look like the real thing but aren't. Die Grinders are the most versatile of tools and I'd be lost without them. :cheers:

Offline manta22

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Re: Quick-change disc
« Reply #5 on: April 05, 2013, 01:36:25 AM »
That's a nice sponsor , Mike. Norton makes the best abrasives that I've ever used but I like the 3M "Scotchbrite-type little discs for light-duty stuff.

I've never heard about a shelf life on abrasive discs but I do know that there are many counterfeit products out there.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline kiwi belly tank

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Re: Quick-change disc
« Reply #6 on: April 05, 2013, 10:20:30 AM »
It can be fun to start and stop your air tool a few times then chase the disk around the shop. Air tools will unscrew and spit off the disk. :-D
LOL, pay that one! :cheers:
  Sid.

Offline Kevin G

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Re: Quick-change disc
« Reply #7 on: April 05, 2013, 10:44:23 AM »
My cut off wheel arbors are constantly walking off. Putting the disk on a 1/4" bolt holding it in place with s nut and chucking it in the die grinder has saved me many times.
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Offline doug odom

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Re: Quick-change disc
« Reply #8 on: April 05, 2013, 11:05:41 AM »
Have you ever tried the 3M abrasive-bristle disc. They work great for light rust removal on steel and polish-smooth out aluminum.
They have little rubber-plastic looking fingers and the more they wear down the better they work.
McMaster-carr has them.
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Offline manta22

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Re: Quick-change disc
« Reply #9 on: April 05, 2013, 11:47:41 AM »
Doug;

Thanks for the recommendation. No, I had not heard of the 3M abrasive bristle discs before so I looked them up on Google. They sound great; I will try some right away.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline Kevin G

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Re: Quick-change disc
« Reply #10 on: April 05, 2013, 02:30:40 PM »
The bristle disks work great. Just be careful on machined surfaces They are more aggressive than they look.
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Offline tauruck

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Re: Quick-change disc
« Reply #11 on: April 06, 2013, 11:45:32 PM »
That's a nice sponsor , Mike. Norton makes the best abrasives that I've ever used but I like the 3M "Scotchbrite-type little discs for light-duty stuff.

I've never heard about a shelf life on abrasive discs but I do know that there are many counterfeit products out there.

Regards, Neil  Tucson, AZ
I have numerous sponsors including 3M. The rep from 3M was a little unhappy that Norton was supplying the abrasives but we'll try keeping the decals as far away from each other as possible. I'll post pics a little later of the attachment I have that holds the small discs for the die grinder. The Norton rep showed me pics of damage caused by substandard discs made in the Far East. Makes me shiver. A little tip for you Neil, You say you hate working with glass?. If you're using the woven fabric just spray a line of 3M Spray 77 where you want to cut the material and the strands won't unravel. It's like cutting paper, no runs. I even use the spray to bond material in place before laminating.

Offline manta22

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Re: Quick-change disc
« Reply #12 on: April 07, 2013, 12:41:12 AM »
Thanks for your helpful advice, Mike.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ