*For Thin or Weak necked cutters use lower IPT to start.
*Smaller diameter cutter use lower IPT to start.
For specific materials or series of cutters, please email mail@abtoolsinc.com or call (916) 408-2442 for more cutting information.
RPM = (SFM x 3.82) ÷ Diameter
SFM = RPM x .262 x Diameter
Chip Load/Tooth(IPT) = in/Min ÷ # of Teeth ÷ RPM
Feed rate(IPM) = Chip Load/Tooth x # of Teeth x RPM
Cubic Inches/Min = R-Woc x A-Doc x in/Min