Ruby Midget Files are precision abrasive tools made from pure, sintered crystals of synthetic ruby with no bonding material — resulting in exceptional hardness and outstanding resistance to changes in shape. These round-profile files are ideal for jewelers, engravers, and mold and die professionals who demand accuracy and longevity from their finishing tools. The ruby files hold their shape well, but can be reshaped and adjusted with diamond wheels and burs. 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 use them for sharpening carbide and high-speed steel engravers and other tools. Features Round-profile midget file for detailed, precision work Made from pure sintered synthetic ruby crystals — no bonding material Extremely hard and resistant to shape deformation Outstanding wear resistance for long-lasting, economical use Can be reshaped and adjusted using diamond wheels and burs Suitable for use in ultrasonic handpieces Jewelers 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 Applications: 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 Profile Round Material Pure sintered synthetic ruby crystals, no bonding material Origin Made in Germany (Degussit) Compatible Applications Hardened tool steel, carbide, surgical stainless steel Available Options Part # Size (Length x Diameter) 110.432 2" x .04" 110.435 4" x .08" 110.436 4" x .12"
