Page 25 - THREADING CATALOG
P. 25
USER GUIDE
Laydown Inserts for External and Internal Threading
Laydown inserts belong to the ISCAR threading family. The geometry (length and IC) of these inserts is designed
according to ISO Standard, and laydown insert can be used for internal and external threading. The cutting edge profile
of laydown inserts can be adjusted to most threading sizes of different threading standards. ISCAR classifies laydown THREAD TURNING
inserts into 3 types: B-Type, M-Type, and G type. There are 2 configurations: U-Type and Regular type. The inserts are
available with one tooth on each cutting edge or with a number of teeth on each cutting edge ( multi-tooth inserts).
Basic Dimensions of Laydown Inserts
U-Type Regular Type Regular Type
PDX
PDX
RE PDX RE RE
IC
PDY PDY PDY
INSL INSL INSL
IC
IC
IC — inscribe circle diameter
PDX — distance between the insert and the corner radius
PDY — gap between the corner radius and
the theoretical triangular vertex
INSL — insert length, triangular leg length
RE — corner radius
23
