Ruby Midget Files in a square profile are precision abrasive tools made from pure, sintered crystals of synthetic ruby — with no bonding material — making them exceptionally hard and highly resistant to changes in shape. That structural integrity is critical for quality precision grinding and finishing work. These files hold their shape well and can be reshaped or adjusted using diamond wheels and burs when needed.Degussit 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. Their outstanding resistance to wear makes them more economical to use than comparable abrasive tools.Features Square profile for precise edge and corner work Made from pure, sintered synthetic ruby crystals — no bonding material Extremely hard and resistant to shape changes Can be reshaped and adjusted with diamond wheels and burs Outstanding wear resistance for long service life Made in Germany ApplicationsJewelers and Engravers: Polishing and shaping of carbide and high-speed steel gravers Sharpening carbide and high-speed steel engravers and other tools 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 ruby stone to a fine point Polishing ribs and other hard-to-reach areas Specifications Material Pure sintered synthetic ruby crystals Profile Square Bonding Material None Country of Origin Germany Available Options Part # Size (Length x Width) 110.431 2" x .04" 110.434 4" x .08"
