® CMT Vertical Milling G 55˚ BSW, BSF, BSP Same insert for internal and external thread CuttingDDiameter InsertType Ordering Code PitchTPI Standard Numberof Teeth D Holder Code* C10 C10 19 W 19 G 1/4 2 10.0 H1, 1.1, 2, 15, 16, 17 C12 C12 19 W 19 G 3/8 2 12.0 H3, 3.1, 4, 5, 18,19, 20 C18 C18 14 WC18 11 W 14 G 1/2 - 7/8 2 17.8 H5.1, 5.2, 6, 7, 8, 9,11G≥1217.821, 22, 23 Trapez - DIN 103 Inserts for internal thread CuttingDDiameter InsertType Ordering Code Pitchmm Standard D Holder Code* C10 C10 I 2 TR 2.0 Tr16x2, Tr18x2 10.0 H1, 2, 15, 17 C12 C12 I 2 TR 2.0 Tr20x2 12.0 H3, 4, 5, 18, 20 C18 I 3 TR 3.0 Tr24x3 17.8 H5.1, 5.2, 6, 7, 8, 9, 21, 22, 23 C18 C18 I 4 TR 4.0 Tr26x4 17.8C18 I 5 TR5.0Tr28x517.8H5.1, 5.2, 21 C25 C25 I 6 TR 6.0 Tr36x6 25.0 H10, 11, 24, 25 * For complete toolholder description see pages B07-22 and 23 B07-12