Helical Mills M390 SD1204... Max depth of cut: 17mm

Lead angle: 90° Indexes per insert: 4 Diameter: 50–80mm

Pages: K4–K9

P M K

S H

Maximum cutting depth (Ap1) and contact width (ae) ratios based on application type

Slot Milling Contouring Profi ling
ae = 1 x D1ae = 0,25–0,4 x D1ae = <0,25 x D1
Ap1 max = 0,6 x D1Ap1 max = 1 x D1Ap1 max = Ap1 max

ae = >0,4 x D1 Ap1 max = 0,6 x D1

*Not recommended in ISO “H” materials. *Not recommended in ISO “H” materials.