USER GUIDE Recommended Number of Passes for Multi-Tooth Insert ISO - (Metric) External Insert Description No. of Passes st nd rd 1 Pass 2 Pass 3 Pass 4 th Pass 16 ER 1.0 ISO 3M 2 0.39 0.24 — — THREADING 16 ER 1.5 ISO 2M 3 0.40 0.31 0.21 — 22 ER 1.5 ISO 3M 2 0.54 0.38 — — 22 ER 2.0 ISO 2M 3 0.56 0.42 0.27 — 22 ER 2.0 ISO 3M 2 0.75 0.50 — — 27 ER 3.0 ISO 2M 4 0.60 0.52 0.44 0.30 Internal Insert Description No. of Passes st nd 1 Pass 2 rd Pass 3 th Pass 4 Pass 16 IR 1.0 ISO 3M 2 0.32 0.26 — — 16 IR 1.5 ISO 2M 3 0.36 0.29 0.22 — 22 IR 1.5 ISO 3M 2 0.49 0.38 — — 22 IR 2.0 ISO 2M 3 0.50 0.40 0.25 — 22 IR 2.0 ISO 3M 2 0.72 0.43 — — 27 IR 3.0 ISO 2M 4 0.57 0.45 0.38 0.33 UN External Insert Description No. of Passes st nd 1 Pass 2 rd Pass 3 th Pass 4 Pass 16 ER 16 UN 2M 3 0.45 0.32 0.20 — 22 ER 16 UN 3M 2 0.60 0.37 — — 22 ER 12 UN 2M 3 0.60 0.39 0.31 — 22 ER 12 UN 3M 2 0.80 0.50 — — 27 ER 8 UN 2M 4 0.63 0.55 0.42 0.36 Internal Insert Description No. of Passes st rd 1 nd Pass 2 Pass 3 Pass 4 th Pass 16 IR 16 UN 2M 3 0.40 0.29 0.23 — 22 IR 16 UN 3M 2 0.57 0.35 — — 22 IR 12 UN 2M 3 0.55 0.39 0.28 — 22 IR 12 UN 3M 2 0.75 0.47 — — 27 IR 8 UN 2M 4 0.65 0.49 0.42 0.27 NPT External Insert Description No. of Passes st nd th 1 Pass 2 rd Pass 3 Pass 4 Pass 22 ER 11.5 NPT 2M 4 0.55 0.46 0.35 0.32 27 ER 11.5 NPT 3M 3 0.75 0.57 0.36 — 27 ER 8 NPT 2M 4 0.80 0.62 0.54 045 Internal Insert Description No. of Passes st nd rd 1 Pass 2 Pass 3 Pass 4 th Pass 22 IR 11.5 NPT 2M 4 0.55 0.46 0.35 0.32 27 IR 11.5 NPT 3M 3 0.75 0.57 0.36 — 27 IR 8 NPT 2M 4 0.80 0.62 0.54 045 WHITWORTH External st nd rd Insert Description No. of Passes 1 Pass 2 Pass 3 Pass 4 th Pass 16 ER 14 W 2M 3 0.51 0.39 0.26 — 22 ER 14 W 3M 2 0.72 0.44 — — 22 ER 11 W 2M 3 0.65 0.46 0.37 — Internal Insert Description No. of Passes st nd rd 1 Pass 2 Pass 3 Pass 4 th Pass 16 IR 14 W 2M 3 0.51 0.39 0.26 — 22 IR 14 W 3M 2 0.72 0.44 — — 22 IR 11 W 2M 3 0.65 0.46 0.37 — API-ROUND External Insert Description No. of Passes st 1 nd rd th Pass 2 Pass 3 Pass 4 Pass 22 ER 10 API RD 2M 3 0.58 0.53 0.30 — 27 ER 10 API RD 3M 2 0.98 0.43 — — 27 ER 8 API RD 2M 3 0.82 0.59 0.40 — Internal st Insert Description No. of Passes 1 nd Pass 2 rd Pass 3 Pass 4 th Pass 22 IR 10 API RD 2M 3 0.58 0.53 0.30 — 27 IR 10 API RD 3M 2 0.98 0.43 — — 27 IR 8 API RD 2M 3 0.82 0.59 0.40 — 544 544 ISCAR ISCAR