® DSI Thread Turning Inserts Whitworth 55° BSW, BSF, BSP, BSB Pitch L I.C. EXTERNALTPIinOrdering Code INTERNALOrdering Code X Y T 16 16U 3/8U 16U ER/L 16 W-6 16U IR/L 16 W-6 1.6 6.9 4.5 14 16U 3/8U 16U ER/L 14 W-6 16U IR/L 14 W-6 1.6 6.9 4.5 12 16U 3/8U 16U ER/L 12 W-6 16U IR/L 12 W-6 1.6 6.9 4.5 11 16U 3/8U 16U ER/L 11 W-6 16U IR/L 11 W-6 1.6 6.9 4.5 10 16U 3/8U 16U ER/L 10 W-6 16U IR/L 10 W-6 1.6 6.9 4.5 9 16U 3/8U 16U ER/L 9 W-6 16U IR/L 9 W-6 1.6 6.9 4.5 8 16U 3/8U 16U ER/L 8 W-6 16U IR/L 8 W-6 1.6 6.9 4.5 7 16U 3/8U 16U ER/L 7 W-6 16U IR/L 7 W-6 1.6 6.9 4.5 6 16U 3/8U 16U ER/L 6 W-6 16U IR/L 6 W-6 1.6 6.9 4.5 5 16U 3/8U 16U ER/L 5 W-6 16U IR/L 5 W-6 1.4 7.2 4.5 Available grades: BMA or MXC Order example: 16U ER/L 9 W-6 BMA NPT Pitch L I.C. EXTERNALTPIinOrdering Code INTERNALOrdering Code X Y T 14 16U 3/8U 16U ER/L 14 NPT-6 16U IR/L 14 NPT-6 1.6 6.9 4.5 11.5 16U 3/8U 16U ER/L 11.5 NPT-6 16U IR/L 11.5 NPT-6 1.6 6.9 4.5 8 16U 3/8U 16U ER/L 8 NPT-6 16U IR/L 8 NPT-6 1.6 6.9 4.5 Available grades: BMA or MXC For carbide grade and cutting speed see page A04-2 and 3 A03-5