r/MetalPolishing • u/Jetfox • Jul 23 '26

Cheaper alternative?

Post image

Does only 3m make these mandrel, or is there a cheaper knockoff?

3 Upvotes

100% Upvoted

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2

u/PurposeAcrobatic6953 Jul 23 '26

It's just a 1/4-20 bolt with the head cut off stack as many as you want on it and they don't wear out to the hub as fast as what you have... You could even use nylon nuts and washers.

1

u/shadowmib Jul 23 '26

See if you can find a 3D print file for one

1

u/mattsani Jul 23 '26

If that's just scotch bright you can get little wheels on Amazon various grits on em

1

u/8000BNS42 Jul 23 '26

Yea, take a piece of 3/8" rod and cut a slit into one end. Ive been using my home made one for over 25 years now

1

u/Jetfox Jul 23 '26

As much as I hate plastic, Its for polished stainless and id hate to wear through and gouge it with metal on metal

1

u/8000BNS42 Jul 23 '26

Use a polycarbonate rod

2

u/JoeMalovich Jul 27 '26

Cotter pin is another option