Micron / Grit Guide Grit range: 10,000 – 320. 40 µm (320 grit) – Coarse cutting & initial shaping. 7 µm (1500 grit) – Fine polishing. 3.5 µm (3000 grit) – High-gloss preparation. 14 µm (800 grit) – General-purpose finishing.
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