ROUGHNESS CONVERSION CHART Rampinelli
0183 320.025 0.05 1 2 Superfinishing Burnishing diamond paste 0.1 4 Lapped, extremely fine finish, perfectly smooth 0.2 8 Lapped for seal joints 0.4 16 0.8 Ground, EDM 32 Machined, extremely fine finish 1.6 63 Machined, very smooth 3.2 125 Machined, smooth 6.3 250 Machined, medium finish 12.5 500 Machined, coarse 25 1000 material 50 2000 material 1 0 ...