Recommended Number of Passes for Multi-Tooth Insert

ISO - (Metric) External
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 ER 1.0 ISO 3M 16 ER 1.5 ISO 2M2 30.39 0.400.24 0.31— 0.21— —
22 ER 1.5 ISO 3M20.540.38
22 ER 2.0 ISO 2M 22 ER 20 ISO 3M3 20.56 0750.42 0500.27
...
27 ER 3.0 ISO 2M40.600.520.440.30
Internal
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 IR 1.0 ISO 3M 16 IR 1.5 ISO 2M2 30.32 0.360.26 0.29— 0.22— —
22 IR 1.5 ISO 3M20.490.38
22 IR 2.0 ISO 2M 22 IR 20 ISO 3M3 20.50 0720.40 0430.25
. 27 IR 3.0 ISO 2M4. 0.57. 0.45— 0.38— 0.33
UN External
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 ER 16 UN 2M 22 ER 16 UN 3M3 20.45 0.600.32 0.370.20 —— —
22 ER 12 UN 2M30.600.390.31
22 ER 12 UN 3M20.800.50
27 ER 8 UN 2M40.630.550.420.36
Internal
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 IR 16 UN 2M30.400.290.23
22 IR 16 UN 3M20.570.35
22 IR 12 UN 2M30.550.390.28
22 IR 12 UN 3M20.750.47
27 IR 8 UN 2M40.650.490.420.27
NPT
External
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
22 ER 11.5 NPT 2M40.550.460.350.32
27 ER 11.5 NPT 3M30.750.570.36
27 ER 8 NPT 2M40.800.620.54045
Internal
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
22 IR 11.5 NPT 2M 27 IR 115 NPT 3M4 30.55 0750.46 0570.35 0360.32 —
. 27 IR 8 NPT 2M4. 0.80. 0.62. 0.54045
WHITWORTH
External
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 ER 14 W 2M 22 ER 14 W 3M3 20.51 0.720.39 0.440.26 —— —
22 ER 11 W 2M30.650.460.37
Internal
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
16 IR 14 W 2M 22 IR 14 W 3M3 20.51 0.720.39 0.440.26 —— —
22 IR 11 W 2M30.650.460.37
API-ROUND
External
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
22 ER 10 API RD 2M 27 ER 10 API RD 3M3 20.58 0.980.53 0.430.30 —— —
27 ER 8 API RD 2M30.820.590.40
Internal
Insert DescriptionNo. of Passes1st Pass2nd Pass3rd Pass4th Pass
22 IR 10 API RD 2M30.580.530.30
27 IR 10 API RD 3M 27 IR 8 API RD 2M2 30.98 0.820.43 0.59— 0.40— —