Here is the Manchester Grinders File guide. Used for creating perfect straight and square edges. Ideal for matching Ricasso to handles or Guards/Hilts or even perfect plunge lines while grinding. This tool is machined from 304 stainless steel topped with cermented carbide then ground on top after assemble to be perfectly flat and sqaure. This guide can hold Knives or swords. It can also be used for integrals 20mm thick or thinner.