This is a 2-pack of the Fine grade (30 micron/400 grit) of the 3M microfinishing diamond family. Perfect for hard materials such as semi & precious stones, carbides, cobalt, tungsten, chilled iron, etc. For high-polished finishes, follow up with the higher microfinishing diamond grades.
Uses for Microfinishing Diamond Abrasives include:
For Lapidary & Watch Crystal: Ideal for cutting & shaping stones as well as smoothing out chips. Also removes heavy to fine scratches on watch crystals.
For Carbide Tools: Sharpen router bits, forstner bits, shaper cutters and various other tools, and remove chips. The sharper-than-factory finish reduces heat build-up during tool operation.
Contains 2 x Microfinishing Diamond 30 Micron/Mint (Fine)