The jig block you can change by removing the trapping handle, take out splitpin to remove, make your own jig.
Width between sides 48mm approx.
The great thing about these rounders is they are designed with a standard spokeshave iron and cap such as the ones found on Stanley spokeshaves and Record spokeshaves so will be easy to replace at any time for generations to come.
This rounder is fitted with a Record spokeshave iron.
Condition: all parts move freely, please see photos for condition.