Page 170 - Threading_Handbook
P. 170
MM TRD – Designation Code Key
THREAD MILLING 1 Cutting diameter (DC) 1 2 3 3 T06 IC528
TRD
MM
16 - M60 - 15P
6
5
4
MM - MULTI-MASTER
TRD – Thread Mill Diameter
DC
2 Profile angle
55° or 60°
W55 — 55°
M60 — 60°
3 Thread pitch value by number
• For metric threading in mm
• For inch threading in TPI
4 No. of flutes value by number
5 Connection size
THSZMS
6 Grade
IC528
170 ISCAR
