Scouring Sandstone

139 4 x 0.002 = 27.808

0.002

114 51 x 0.002 = 22.902

0.002

104 17 x 0.002 = 20.834

0.002

103 48 x 0.002 = 20.696

0.002

102 35 x 0.002 = 20.47

0.002

96 42 x 0.002 = 19.284

0.002

92 68 x 0.002 = 18.536

0.002

91 21 x 0.002 = 18.242

0.002

87 41 x 0.002 = 17.482

0.002

86 3 x 0.002 = 17.206

0.002

x 0.08 = 0

0.08