MCD INSERT

MCD Monocrystalline Diamond Tools — Ultimate Sharpness for Mirror-Finish Machining Product Overview MCD (Monocrystalline Diamond) is the hardest cutting tool material available. Its continuous, grain-boundary-free crystal structure allows the cutting edge to be ground to nanometer-level sharpness, with an edge radius as fine as 0.01–0.05 μm. In ultra-precision machining of non-ferrous and non-metallic materials, MCD tools deliver a mirror finish directly from the cut — eliminating downstream lapping and polishing and significantly shortening total process time. Key Advantages Feature Benefit Hardness HV 8,000–10,000 Outstanding wear resistance; tool life many times that of carbide No grain boundaries Superior edge sharpness; surface roughness down to Ra 0.01 μm Excellent dimensional stability Minimal wear ensures consistent accuracy over long production runs Polish-free mirror surface Fewer secondary operations and lower cost per part Low friction coefficient No built-up edge; burr-free, tool-mark-free surfaces Suitable Materials Aluminum alloys, oxygen-free copper, brass, precious metals (gold, silver, platinum), electroless nickel plating, acrylic (PMMA), optical plastics, graphite, green ceramics and composites. ※ Not recommended for ferrous materials, as carbon diffusion at elevated temperatures causes abnormal tool wear. Applications Optical lenses and mold cores, laser reflective mirrors, consumer electronics housings and light guide plates, watch components, semiconductor and LED parts, aerospace aluminum structures, precision medical components. Machining Recommendations Use on high-rigidity, low-vibration CNC vertical machining centers or precision lathes Pairing with an ultrasonic spindle or ultrasonic tool holder further improves surface quality and tool life on brittle materials Apply high spindle speed with shallow depth of cut and light feed; use oil mist or cutting oil for lubrication Avoid interrupted cutting and impact loads to protect the cutting edge Specifications Fully customizable geometries: ball nose, flat end, bull nose, single- and double-flute end mills, turning tools, form tools and V-engraving tools. Diameter, flute length, shank size and angles made to order.