I am sure my 19mm is actually 20mm and it worked fine.
I got quite a bit of my 25mm from some old computer trolleys some schools I work at were throwing out. The teachers were laughing at me sawing them up in a skip in the school car park, felt a bit skanky scavenging desks but at least its recycling.
Saved me a bit of money but still had to buy the longer lengths.
|