® Thread Turning Inserts Partial Profile 55° Vertical EXTERNAL INTERNAL L I.C. Pitch Range Ordering Code Ordering Code X Y T in mm TPI Right Hand Left Hand Right Hand Left Hand 16 3/8 0.5 - 1.5 48 - 16 16V ER A55 16V EL A55 1.0 0.9 3.6 16 3/8 1.75 - 3.0 14 - 8 16V ER G55 16V EL G55 1.0 1.7 3.6 16 3/8 0.5 - 3.0 48 - 8 16V ER AG55 16V EL AG55 1.0 1.8 3.6 22 1/2 3.5 - 5.0 7- 5 22V ER N55 22V EL N55 1.2 2.5 4.8 27 5/8 6.0 - 10.0 4- 2.5 27V ER V55 27V EL V55 27V IR V55 27V IL V55 1.8 5.2 10.4 Order example: 22V ER N55 BMA For carbide grade and cutting speed see page A04-2 and 3 A01-6