Mine is a made in Australia by Suttons copy, it says on it that its 5/16" and it takes 4mm (about 5/32"
thick chasers. So I'm guessing that yours is at least 3/8"
cheers
Bill
Edited By Bill Pudney on 22/10/2013 10:02:27
Edited By Bill Pudney on 22/10/2013 10:02:59
Edited By Bill Pudney on 22/10/2013 10:03:28