Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

Speed and Feed Calculator

SFM Tool Diameter: RPM: = Surface Feet per Minute
RPM Tool Diameter: SFM: = Revolutions Per Minute
IPM (Drilling) IPR: RPM: = Inches Per Minute (Drilling)
FPR IPM: RPM: = Feed Per Revolution
IPM (Milling) FPT: RPM: = Inches Per Minute (Milling)
  Number of Teeth: Number of teeth are necessary for IPM Milling calculation