® CMT Vertical Milling Full Profile - UN Inserts for internal thread CuttingDDiameter Insert Ordering Pitch NominalTypeCodeTPISizeUNC UNF UNEF Numberof TeethD HolderCode* C10 I 20 UN 20 1/2 2 10.0 H1, 1.1, 2, C10 C10 I 18 UN 18C10 I 13 UN13 9/16 2 10.0 15, 16, 171/2110.0H1, 2, 15, C10 I 12 UN 12 5/8, 11/16, 3/4 9/16 1 10.0 17 C12 I 32 UN 32 9/16, 5/8 3 12.0 C12 I 28 UN 28 9/16, 5/8, 11/16 3 12.0 C12 I 24 UN 24 9/16, 5/8,11/162 12.0 H3, 3.1, 4, C12 I 20 UN 20 9/16, 5/8, 11/16C12C12 I 18 UN18 3/45/8 22 12.012.05, 18, 19,20 C12 I 16 UN 16 5/8, 11/16 3/4 1 12.0 C12 I 12 UN 12 5/8 1 12.4 C12 I 11 UN 11 5/8 1 12.0 H3, 4, C12 I 10 UN 10 3/4 1 12.0 5,18,20 C18 I 32 UN 32 3/4, 13/16, 7/8 6 17.8 C18 I 28 UN 28 3/4, 13/16, 7/8 5 17.8 C18 I 24 UN 24 4 17.8 C18 I 20 UN 20 11/16, 11/8 13/16, 7/8,15/163 17.8 H5.1, 5.2, C18 I 18 UN 18C18C18 I 16 UN167/8, 1 3 17.8 6, 7, 8, 9,317.821, 22, 23 C18 I 14 UN 14 7/8 2 17.8 C18 I 12 UN 12 7/8 1, 11/8 2 17.8 C18 I 11 UN 11 2 17.8 C18 I 9 UN 9 7/8 1 17.8 C18 I 8 UN 8 1 1 17.8 C25 I 8 UN 8 13/16, 11/4, 15/16 2 25.0 C25 I 7 UN 7 11/4 1 25.0 C25 C25 I 6 UN 6 17/16, 19/16 13/8, 11/2 1 25.0 H10, 11,24, 25 C25 I 5 UN 5 1 3/4 1 25.0 C25 I 4 UN 4 21/2, 23/4 1 25.0 * For complete toolholder description see pages B07-22 and 23 B07-10