Is there a difference between sharpening hardened steel, tool steel and tungsten carbide?
The technique for sharpening a scriber tip is the same, regardless of whether it’s a hardened steel, tool steel or tungsten carbide tip. However, there is a difference in the sharpening stone and cutting fluid you will need.
Hardened tool steel can be sharpened with an aluminium oxide oil stone or whetstone, whereas tungsten carbide tipped scribers will require a diamond stone with a continuous diamond surface, as the sharpening stone has to be of a harder material than the tool it is sharpening.
