3M Diamond Microfinishing Film Sheet 675L, 4 in x 8 in

Each sheet is 3M Original 4 in. x 8 in. size
Abrasive Material is Diamond
Backing Material is Polyester Film
74 micron to refine thermal sprayed surfaces and 45, 30, 20 and 9 micron for finer finishes.

Please pay attention to super powerful cutting ability.

These 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.

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.