Answer
Apr 25, 2026 - 05:26 AM
Grit size determines the abrasiveness of the sanding disc and directly impacts the finish quality when using cnc sanding tools. Coarse grits (like 80) remove material quickly and are best for initial sanding or heavy material removal, while finer grits (such as 180 or 220) are ideal for smooth finishes and final prep. The SD-4-80, SD-4-150, and SD-4-220 provide a wide range of grit options to tailor your sanding sequence for any stage of surface preparation. Having access to various grits lets you achieve both rapid stock removal and ultra-smooth finishes.
