The Ruby Midget File in an oval profile is a precision finishing tool made from pure, sintered crystals of synthetic ruby — manufactured in Germany under the Degussit standard with no bonding material. This construction results in an exceptionally hard file that resists changes in shape, making it ideal for fine, repeatable work on the hardest materials. The file measures 4" × 0.16" × 0.06" and can be reshaped or adjusted using diamond wheels and burs when needed. Ruby stones are the ideal choice for deburring, blending, dressing, and fine polishing of molds and dies made of hard metals such as hardened tool steel, carbide, and surgical stainless steel. Jewelers and engravers rely on them for sharpening carbide and high-speed steel gravers and other precision tools. Features Made in Germany from pure sintered synthetic ruby crystals No bonding material — delivers exceptional hardness and shape stability Oval profile midget file for accessing detailed and hard-to-reach areas Can be reshaped and adjusted with diamond wheels and burs Outstanding resistance to wear for long service life and economical use Suitable for use in an ultrasonic handpiece for fast deburring and blending Applications — Jewelers and Engravers Polishing and shaping of carbide and high-speed steel gravers Sharpening carbide and high-speed steel gravers and other tools Applications — Mold and Die Work Use in an ultrasonic handpiece for fast deburring and blending Deburring ejector pin holes General deburring and edge breaking on mold steel and carbide Blending a surface where a straight edge meets a radius Polishing highly detailed areas on dies after dressing the ruby stone to a fine point Polishing ribs and other hard-to-reach areas Specifications Dimensions 4" × 0.16" × 0.06" Profile Oval Material Pure sintered synthetic ruby crystals Bonding Material None Country of Origin Germany Compatible Materials Hardened tool steel, carbide, surgical stainless steel Notes These files can be reshaped and adjusted using diamond wheels and burs, allowing you to customize the profile for specific applications such as dressing to a fine point for polishing highly detailed die areas.
