Cutting 7” diameter sandpaper down to 5”

[branimal]

I got a bunch of partially used 7” diameter sand paper hook & loop discs of various grits.

I’d like to use them on my 5” Ridgid orbital sander. Is there a quick way to cut em down to size? Or draw 5” circles on them and cut with a scissors?

Thanks


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[James-W]

I suppose a 5 inch hole saw would work, but I imagine the saw would get dull pretty quick unless it had some really hardened teeth.

 

[drewsifer714]

Quick? A laser cutter, lol.
If you have a lot to do maybe some kind of cookie cutter contraption in a hydraulic press.

 

[frankthezapper]

Why bother cutting them down? The edges will just hang over an inch, will flap about a bit, 2nd hand discs can probably tolerate a bit of flap!

 

[frankthezapper]

Original question; yes, scissors (old rough kitchen type, not mum's good sewing ones)

 

[66cj225]

How about a 5 inch object, like coffee can or plastic pipe fitting and a razor knife? Depending on the quantities, build a punch.

 

[ScottsGT]

I used to do it all the time with grinding discs. Use a pair of tin snips you don't care about.
Place on disc, then trim around the edge.