Scouring Sandstone

365 21 x 0.002 = 73.042

0.002

313 27 x 0.002 = 62.654

0.002

1 87 x 0.316 = 59.092

0.316

247 76 x 0.002 = 49.552

0.002

233 61 x 0.002 = 46.722

0.002

220 33 x 0.002 = 44.066

0.002

66 x 0.629 = 41.514

0.629

180 12 x 0.002 = 36.024

0.002

173 4 x 0.002 = 34.608

0.002

0 x 0.002 = 0

0.002

x 0.08 = 0

0.08