TCo Cutting Speeds

Convert Cutting Speed to RPM:

Where

V = Cutting speed in fpm
D = Tool diameter in inches
N = RPM

Feed Rate in Inches/Minute
fm = ft x nt x N

where

ft = Feed per tooth in inches
nt = Number of teeth
N = Cutter RPM

 

Tapping Speeds and Feeds (Procunier)

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