® Thread Turning Inserts NPT Multitooth EXTERNAL INTERNAL Pitch L I.C. Number Ordering Code Anvil Ordering Code Anvil X Y TPI in of Teeth 14 16 3/8 2 16 ER 14 NPT 2M AE16M 16 IR 14 NPT 2M AI16M 1.7 2.8 11.5 22 1/2 2 22 ER 11.5 NPT 2M AE22M 22 IR 11.5 NPT 2M AI22M 2.3 3.5 11.5 27 5/8 3 27 ER 11.5 NPT 3M AE27M 27 IR 11.5 NPT 3M AI27M 3.3 5.5 8 27 5/8 2 27 ER 8 NPT 2M AE27M 27 IR 8 NPT 2M AI27M 3.1 5.0 Order example: 22 ER 11.5 NPT 2M MXC For recommended number of passes see page A04-4 NPT Vertical EXTERNAL EXTERNAL Pitch L I.C. Ordering Code Ordering Code X Y T TPI in Right Hand Left Hand 27 16 3/8 16V ER 27 NPT 16V EL 27 NPT 1.0 0.8 3.6 18 16 3/8 16V ER 18 NPT 16V EL 18 NPT 1.0 1.0 3.6 14 16 3/8 16V ER 14 NPT 16V EL 14 NPT 1.0 1.2 3.6 11.5 16 3/8 16V ER 11.5 NPT 16V EL 11.5 NPT 1.0 1.5 3.6 Order example: 16V ER 14 NPT BMA For carbide grade and cutting speed see page A04-2 and 3 A01-19