The MC-20 Machinist Calculator is a hand held device programmed with Built in Formulas.

Functions And Formulas:

RPM (Revolutions Per Minute)
SFPM (Surface Feet Per Minute)
IPM (Inches Per Minute)
FPT (Feed Per Tooth)
CT (Cut Time)

RPM = SFM×12÷3.1874×Diameter
SFM = 3.1874×Diameter×RPM÷12
IPM = RPM×Number of Teeth×FPT
FPT = IPM÷RPM×Number of Teeth
CT = LOC÷RPM×FPR
inch to mm = inch×25.4
mm to inch = mm×.03937
m to mm = m×1000

For more information contact

Erie Industrial
Phone 814-452-3231
Fax 814-456-7176
Email