Instructions: Fill in the blocks shaded in blue with your application information. The calculator will automatically provide the necessary speed and feed in the green fields. For assistance setting up your milling program, contact a Dapra applications specialist or call (800) 243-3344.
Download Recommended Operating Parameter Charts (PDF):
No of inserts (flutes)
Maximum spindle speed of the milling machine
Recommended cutting speed
Spindle speed (unadjusted)
Spindle speed (adjusted for machine maximum)
Axial depth of cut (d.o.c.)
Radial width of cut (w.o.c.)
Feed per tooth (desired chip thickness)
Actual chip thickness (before w.o.c. adjustment)
Unadjusted feed rate
Adjusted feed rate (compensates for w.o.c.)
Adjusted FPT (for width of cut < 1/2 tool dia.)
Metal removal rate with adjustment to w.o.c.
We're here to help you choose the correct tooling, inserts and operating parameters to maximize your efficiency and productivity.