3M Scotchbright wheel

[petro1headParticipant @petro1head]

These look like a great idea for polishing and deburing. Looking at 150×25 however not sure where to but and what grade plusmis there andecent alternative to 3M as they are quite expensive

[petro1headParticipant @petro1head]

[BazParticipant @baz89810]

Last aerospace company I worked for used to use them a lot, we had a 8 inch grinder with a drill chuck either end and a plywood template to cut the circles of scotchbrite around, they were mounted on a 1/2 inch bolt with a couple of ply washers supporting them and that was it. Used to get a lovely finish with them on stainless bits but you need a mask and safety glasses because of all the bits and dust that comes off the scotchbrite.

[Dave HalfordParticipant @davehalford22513]

Scotchbrite has Aluminium oxide in it

[DalboyParticipant @dalboy]

Not sure if THESE are the same type of thing as they say they are used to produce a satin finish on metal. Have been thinking of trying them if anyone has any experience of them.

I also looked at the M3 ones and found them expensive

[bernard towersParticipant @bernardtowers37738]

I use fine deburring wheels from 3m they are quite expensive but do a superb job, mostly used used for taking the burr off the last gear in a stack off the Hobber.

Edited By bernard towers on 16/09/2023 21:38:56

[george baker 1Participant @georgebaker1]

Hi

I'm not sure that they were the same thing but I worked in a place with a big floor scrubber that used similar looking pads. Odd pads were often available, so I suppose you could cut circles and after a few revolutions I suspect the circles would trim them selves.

G

[petro1headParticipant @petro1head]

Posted by Dalboy on 16/09/2023 21:33:14:

Not sure if THESE are the same type of thing as they say they are used to produce a satin finish on metal. Have been thinking of trying them if anyone has any experience of them.

I also looked at the M3 ones and found them expensive

No thay are the soft ones

[Martin ConnellyParticipant @martinconnelly55370]

Baz, sounds much like using a Scotchbrite type of wheel in a Dremel. The bits that fly off them is best kept out of the workshop.

Martin C

[petro1headParticipant @petro1head]

This is what I am refering to HERE

[Michael GilliganParticipant @michaelgilligan61133]

Posted by petro1head on 17/09/2023 08:40:44:

This is what I am refering to HERE

.

Which just goes to demonstrate a point that I have previously tried to make:

 

Similar to the situation with “loctite” … merely referencing a trade name is not enough !

MichaelG.

.

Ref. https://www.model-engineer.co.uk/forums/postings.asp?th=176664&p=1

Edited By Michael Gilligan on 17/09/2023 08:51:22

[BazParticipant @baz89810]

Posted by Martin Connelly on 17/09/2023 08:21:06:

Baz, sounds much like using a Scotchbrite type of wheel in a Dremel. The bits that fly off them is best kept out of the workshop.

Martin C

Totally agree Martin, amazing how many bits fly off. We used the light brown grade which is quite coarse and after half an hour you were covered in dust. I don’t use them at all in my workshop, if I had to use them I would do it in the garden.

[noel shelleyParticipant @noelshelley55608]

For the sort of things we do I would recommend the 3M unitized discs, about 3" dia with the rolok attachment on a 4.5 angle grinder. They come in a wide array of grain size and for cleaning or satin finish are very good. They will take cast brass from as cast to satin, but be warned they are a lot more agressive than you might think. Their not cheap. Best used in the open as the particles will get everywhere. Noel.

PS When they were first about, they supplied a kit with a range of grits and the rolok fitting at a reasonable price to get you hooked.

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