JohnPW":9asygj9u said:The narrowest manufactured chisel I've got is 2.2mm, I think. I've got quite a few at 3mm and 3.5mm.
My narrowest are ones I made myself, 1.5mm from ground flat stock and 1mm from a jigsaw blade.
And I do use them, eg for making thumb planes, mortices for linings on a violin.
I have now bought what I presume is a 1/16 Mawhood chisel, actual width 1.8mm, cost £1!
Here'a pic of the narrow chisels I made.
In front is the 1.2 mm made from a jigsaw blade, behind is made from 1.6mm ground flat stock. Both handles have caps and are made from 2 halves glued togeter.