Page 32 - Carmex - Metric Catalog 2021

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Thread Turning Inserts

NPT

EXTERNAL INTERNAL
Pitch L I.C. Ordering Code Ordering Code X Y
TPI in Right Hand Left Hand Right Hand Left Hand
27 6 5/32 *06 IR 27 NPT *06 IL 27 NPT 0.6 0.6
ULTRA MINIATURE 
27 8 3/16 *08 IR 27 NPT *08 IL 27 NPT 0.6 0.6
18 8 3/16 MINIATURE  *08 IR 18 NPT *08 IL 18 NPT 0.6 0.6
27 11 1/4 11 ER 27 NPT 11 EL 27 NPT 11 IR 27 NPT 11 IL 27 NPT 0.7 0.8
18 11 1/4 11 ER 18 NPT 11 EL 18 NPT 11 IR 18 NPT 11 IL 18 NPT 0.8 1.0
14 11 1/4 11 ER 14 NPT 11 EL 14 NPT 11 IR 14 NPT 11 IL 14 NPT 0.8 1.0
27 16 3/8 16 ER 27 NPT 16 EL 27 NPT 16 IR 27 NPT 16 IL 27 NPT 0.7 0.8
18 16 3/8 16 ER 18 NPT 16 EL 18 NPT 16 IR 18 NPT 16 IL 18 NPT 0.8 1.0
14 16 3/8 16 ER 14 NPT 16 EL 14 NPT 16 IR 14 NPT 16 IL 14 NPT 0.9 1.2
11.5 16 3/8 16 ER 11.5 NPT 16 EL 11.5 NPT 16 IR 11.5 NPT 16 IL 11.5 NPT 1.1 1.5
8 16 3/8 16 ER 8 NPT 16 EL 8 NPT 16 IR 8 NPT 16 IL 8 NPT 1.3 1.8
* Available only in BXC and BMA grades
Order example: 16 ER 14 NPT MXC
For small bore threading see page A06-16

Type B

Ground profile with sintered chip-breaker

EXTERNAL INTERNAL
Pitch L I.C. Ordering Code Ordering Code X Y
TPI in Right Hand Right Hand
18 11 1/4 11 IR B 18 NPT 0.8 0.9
18 16 3/8 16 ER B 18 NPT 16 IR B 18 NPT 0.8 1.0
14 16 3/8 16 ER B 14 NPT 16 IR B 14 NPT 0.9 1.2
11.5 16 3/8 16 ER B 11.5 NPT 16 IR B 11.5 NPT 1.1 1.5
8 16 3/8 16 ER B 8 NPT 16 IR B 8 NPT 1.3 1.8
Order example: 16 IR B 11.5 NPT BMA

For carbide grade and cutting speed see page A04-2 and 3
A01-18