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.
Click here to download a chart of recommended Ball Nose cutting speeds and feeds (PDF).
No. of Cutting Edges (flutes):
Maximum spindle speed of the milling machine:
Cutting speed (surface feet):
Depth of cut/stock to remove (DOC):
Effective cutting diameter (if tip cutting):
Required spindle speed:
Spindle speed (compensates for machine max):
Feed per tooth (desired chip thickness):
Feed rate w/o adjustment to axial depth of cut:
Feed rate adjusted to axial depth of cut (if d<D/2):
Feed per tooth adjusted to axial depth of cut (d<D/2):
Remember, your job is our job! We're here to help you choose the correct tooling, inserts and operating parameters to maximize your efficiency and productivity.