I can only find 4mm letter-number punches on the Screwfix site. Where can I get larger ones or will these be OK?

machine mart do bigger but 4mm would be ok

if you intend to use Gillingham, then you should be OK with 4mm

Check with Ben_Copeland in Margate
I'm sure he used 4mm for his SVA.


DAVID

Ebay + Frost auto (amongst others) sell bigger punches (typically 5mm)

I used 4 mm Machine Mart ones, full set of letters and numbers for a tenner.

Passed ... but if you wereto measure, like I did, the letters are a tad under 4 mm, I'd think you'd be very unlucky if the inspector got a vernier caliper out to measure.....