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Threading Inserts
60°
1/8P
first choice
alternate choice
American
UN-External
P M K N
S
H
RC E insert
size external thread
pitch mm internal thread
pitch mm external
TPI internal
TPI NTC3R16E 0,19 3,76 3 — — 16 — NTC3R14E 0,22 3,76 3 — — 14 — NTC3R12E 0,25 3,76 3 — — 12 —
NTC-E
catalogue number
right hand
60°
1/4P
American
UN-Internal
catalogue number
RC E insert
size external thread
pitch mm internal thread
pitch mm external
TPI internal
TPI
0,10 3,76 3 — — — 12
NTC-I
widia.com
F17
NTC3L12I
left hand