Speeds & Feeds for Thread Milling Cutters

Workpiece
Material
Speed
SFM
Feed Rate (Inches Per Tooth)
3/16" Dia.
1/4" Dia.
5/16" Dia.
3/8" Dia.
1/2" Dia.
ALUMINUM
800-1400
.001-.0015
.0015-.0025
.002-.003
.003-.0045
.0035-.0055
BRASS
600-800
.001-.0015
.0015-.0025
.002-.003
.003-.0045
.0035-.0045
BRONZE
500-600
.001-.0015
.0015-.0025
.002-.003
.003-.0045
.0035-.0045
LOW ALLOY
STEEL <25RC
350-500
.001-.0015
.0015-.0025
.002-.003
.0025-.0035
.003-.004
HIGH ALLOY
STEEL >25RC
250-400
.0005-.001
.0008-.0015
.001-.002
.0015-.0025
.002-.003
STAINLESS
150-250
.0006-.001
.001-.0015
.0015-.002
.0015-.0030
.002-.0035
TITANIUM
80-150
.0005-.001
.0008-.0015
.001-.002
.0015-.0025
.0015-.0025