Kerr-Ventura Graphite Crucibles For All 30 Troy Ounce Models GemOro Checkering files are used for

Checkering files are used for putting serrations on knife edges and for creating checkered designs similar to a gun handgrip

Also called watchmakers files

Kerr 31807 – 230V

Note: lengths do not include the handle section (tang)

Kerr-Ventura Graphite Crucibles For All 30 Troy Ounce Models GemOro Checkering files are used forThese virgin graphite crucibles are manufactured exclusively for Otto Frei as a direct replacement for Kerr part numbers 29478 and 35620. Designed for use in all Kerr 30 troy ounce (approximately 1 kilo) Electro Melt models, they deliver long lasting, economical performance that outlasts compressed graphite alternatives. Unlike the compressed graphite crucibles commonly found on the market, these crucibles are made from virgin graphite a denser,