Where and when to apply this formula: 1) When determining line spacing during peripheral linear machining with toric* or ball-nose milling cutters. * Substitute insert diameter for INSD.

INSD DC

H H 2) When determining line spacing during transverse linear machining with (not only) toric milling cutters and during plunge milling **. ** Substitute milling cutter diameter for DC.

INSD DC

H H

3) When determining feed per tooth during contour milling (side milling).***

*** Substitute milling cutter diameter for DC and divide by the number of teeth.

f 2

3f ≤( 8 . RE . H)/z3R =z
z maxR = hR = ht4 . DC
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z z f f n n