® CMT Vertical Milling Groove Milling W DIN 471/472 CuttingDDiameter RAT Detail A InsertType Ordering Code D Nom`groovewidth W T-0.04max. R Groove Dia. (min.) Holder Code* C10 W087 10.0 0.8 0.87 1.3 0 Ø > 10.0 C10 W097 10.0 0.9 0.97 1.3 0 Ø > 10.0 C10 C10 W121 10.0 1.10 1.21 1.3 0 Ø > 10.0 H1, 2, 15, 17 C10 W141 10.0 1.30 1.41 1.3 0.1 Ø > 10.0 C10 W171 10.0 1.60 1.71 1.3 0.1 Ø > 10.0 C12 W121 12.4 1.10 1.21 1.7 0 Ø > 12.4 C12 C12 W141 12.4 1.30 1.41 1.7 0.1 Ø > 12.4 H3, 4, 5, 18,20 C12 W171 12.4 1.60 1.71 1.7 0.1 Ø > 12.4 C18 W121 17.8 1.10 1.21 2.9 0.1 Ø > 17.8 C18 C18 W141C18 W171 17.817.8 1.301.60 1.411.71 2.92.9 0.10.1 Ø > 17.8Ø > 17.8H5.1, 5.2, 21 C18 W196 17.8 1.85 1.96 2.9 0.15 Ø > 17.8 * For complete toolholder description see pages B07-22 and 23 B07-16