Diamond grinding disc 7 inch 180mm 25mm Arbor Hole,Water mill diamond lapidary crystal gem jade carved ceramic glass

entry number

application

Fine sand

800-2000

used for polishing (to smooth out rough surfaces)
Can also be used for grinding, grinding speed is relatively slow for grinding, but the grinding surface is relatively smooth, the finer the number of eyes the better the polishing effect

Medium sand

150-600

metal/glass/carving knives and other tool surface preliminary grinding, and then polished with fine sand

Coarse sand

50-120

Coarse sand grinding degree is deep, abrasive surface is often used for preliminary treatment
Or products with no requirements for surface smoothness, such as raw stone peeling