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3M POLY MIC BELT These 3M™ Micron-finishing Film belts are made in England with high strength film backing and micron-graded aluminum oxide mineral. They are waterproof and provide a uniform, close tolerance finish. They have a proprietary lubricated Aluminum Oxide sanding surface which is excellent on steel. The 5 mil flexible poly backing has a friction coating on the back that resists slipping. The following are approximate grit comparisons between Micron and European "P" grading: 10 mic = 2000 grit 13 mic = 1500 grit 15 mic = 1200 grit 30 mic = 600 grit 40 mic = 360 grit 60 mic = 240 grit 80 mic = 180 grit 100 mic = 150 grit
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🇺🇸 Ship from USA · On Agora since 2026
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