In message om, Dave
Liquorice writes
On Sun, 05 Sep 2004 16:49:26 +0100, Dave Plowman (News) wrote:

No make on it I'm afraid. Bought from IIRC Homebase, but many years
ago.

Done a bit of googling, Trimeasy?

http://bq.unitedkingdomshop.co.uk/5.02017E-12.html

Unfortunately all the links I can find from these discount/cheaper
shopping sites seem to end up at B&Q. Who no longer carry it, maybe
it's discontinued...

Uses a sort of rotating small pair of scissor blades.

I wonder if a fine spiked wheel would work to make a perforated edge.
Where can you get fine spiked wheels?

Haberdashery department?

--
geoff