Ruby Midget Files in a triangular profile offer jewelers, engravers, and mold-and-die professionals a precision abrasive tool built from pure, sintered crystals of synthetic ruby. Made in Germany under the Degussit name, these files contain no bonding material, which makes them exceptionally hard and highly resistant to changes in shape — a critical quality for precision grinding and fine finishing work. The files hold their shape well during use and can be reshaped or adjusted using diamond wheels and burs when needed. Ruby stones and files 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 rely on them for sharpening carbide and high-speed steel engravers and other cutting tools. Because of their outstanding resistance to wear, Degussit Ruby Files are more economical in the long term than comparable abrasive tools. Features Made from pure sintered synthetic ruby crystals — no bonding material used Triangular profile suits detail work, tight angles, and hard-to-reach surfaces Holds shape well during use; reshaped with diamond wheels or burs as needed Excellent hardness and wear resistance for work on hardened tool steel, carbide, and surgical stainless steel Suitable for ultrasonic handpiece use for fast deburring and blending More economical than comparable tools due to superior wear resistance Made in Germany Applications Jewelers and Engravers: Polishing and shaping of carbide and high-speed steel gravers and other tools Use in an ultrasonic handpiece for fast deburring and blending Deburring ejector pin holes in mold and die work 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 Material Pure sintered synthetic ruby crystals, no bonding material Profile Triangular Country of Origin Germany Series Degussit Ruby Files Available Options Part # Size (Length x Width) 110.433 2" x .08" 110.441 4" x .12"
