Mini-Lathe Carriage handwheel

Well, I managed to damage my original carriage handwheel so was forced to get a replacement sorted out.
This is the result.
The lathe is a chinese 7x14 as supplied by amadeal(UK), but similar lathes are supplied under many different names and by many different companies.
The diameter is 80mm, same as the original. It fits an 8mm shaft.
The original handwheel had a metal insert, which was locked onto the indented shaft with a grub screw.
This replacement is a tight fit onto the shaft, whi