® Thread Turning Inserts OIL Threads Extreme - Line Casing EXTERNAL INTERNAL Pitch L I.C. Taper Ordering Code Ordering Code X Y Connection TPI in IPF Right Hand Right Hand No. or Size 6 22 1/2 1.50 22 ER 6 EL 1.5 22 IR 6 EL 1.5 1.9 1.9 5 - 75/8 5 22 1/2 1.25 22 ER 5 EL 1.25 22 IR 5 EL 1.25 2.4 2.3 85/8-103/4 Buttress Casing EXTERNAL INTERNAL Pitch L I.C. Taper Ordering Code Ordering Code X Y Connection TPI in IPF Right Hand Right Hand No. or Size 5 22 1/2 0.75 22 ER 5 BUT 0.75 22 IR 5 BUT 0.75 2.2 2.4 41/2 -133/8 5 22 1/2 1.00 22 ER 5 BUT 1.0 22 IR 5 BUT 1.0 2.3 2.4 16 -20 Order example: 22 ER 5 BUT 0.75 MXC VAM EXTERNAL INTERNAL Pitch L I.C. Taper Ordering Code X Y Ordering Code X Y Connection TPI in IPF Right Hand Right Hand No. or Size 8 16 3/8 0.75 16 ER 8 VAM 1.7 1.8 16 IR 8 VAM 1.7 1.8 23/8 - 27/8 6 22 1/2 0.75 22 ER 6 VAM 2.4 2.4 22 IR 6 VAM 2.5 2.5 31/2 - 41/2 5 22 1/2 0.75 22 ER 5 VAM 2.4 2.7 22 IR 5 VAM 2.4 2.5 5 - 133/8 Order example: 16 ER 8 VAM BMA For carbide grade and cutting speed see page A04-2 and 3 A01-34