Minimum Size Thread
12 = No. 12 - 0.216” (1228316-28 Pitch Tool)
10 = No. 10 - 0.190”
14 = 1/4” - 0.250”
516 = 5/16” - 0.3125”
38 = 3/8” - 0.375”
716 = 7/16” - 0.4375”
12 = 1/2” - 0.500” (1213516-13 Pitch Tool)
916 = 9/16” - 0.5625”
58 = 5/8” - 0.625”
1116 = 11/16” - 0.6875”
34 = 3/4” - 0.750”
78 = 7/8” - 0.875”
01 = 1” - 1.000”

Solid Carbide Shank Size
316 = Shank Ø0.1875”
14 = Shank Ø0.250”
516 = Shank Ø0.3125”
38 = Shank Ø0.375”
12 = Shank Ø0.500”
58 = Shank Ø0.625”

E2 = One Skipped Tooth
E3 = Two Skipped Teeth

Coating
“-” = Uncoated
C = TIN
Y = TICN
Z = Futura / TiALN
X = Hard Lube
V = X.