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Our industrial grade 3M Microfinishing diamond abrasives are perfect for hard materials such as semi & precious stones, carbides, cobalt, tungsten, chilled iron, etc. Use wet or dry.
Lapidary & Watch Crystal: Ideal for cutting & shaping stones as well as smoothing out chips. Also removes deep to fine scratches on watch crystals.
For a higher polish on your stones or glass, use the 3M™ PREMIUM Polishing Diamond Kit after these Microfinishing Diamond abrasives.
Carbide Tools: Sharpen router bits, forstner bits, shaper cutters and various other tools. Also helps remove chips & nicks. Achieves a sharper-than-factory finish on cutting edges which reduces heat build-up during tool operation.
AUTOMOTIVE: Perfect for sharpening any high-speed steel machining/cutting tools. Get crisp edges on valve seats and stems, hone small parts of almost any shape.
JEWELRY: Fantastic results on jewelry: performs better than emery paper & fills porosity. Also works great on plastics and for glass defect repair.
WOODWORKING: Perfect for high-speed steels, it allows sharpening of a wide array of woodcarving & turning tools and knives. Fine hone and maintain the tips & edges of flat chisels, drill bits, counter sinks, fluted end mills, etc.
Recommended for use with 3M Cushions.
Combo Set Includes 1 of each of the following grades: 74, 45, 30, 20 micron