Description
Solid carbide ball nose milling cutter with special geometry and coating.

Application
For stainless and acid-resistant steels.

Features
Type N.
Four cutting edges.
45 deg helix.
Ground recess.
TiAlN coating.
Centre-cutting teeth.
Tolerance radius contour +/-0.005 mm.

Advantages
Can be used as a true four-edge drill at all depths of cut.

Product Data
Product type: Solid Carbide Ball Nose Milling Cutter HPC
Article family: 207477
Size: 20 mm

Dimensions
Diameter / shank variant: 20 mm
Cutting length Lc: 26 mm
Overall length L: 92 mm
Shank diameter Ds: 20 mm
Feed fz INOX <900 N/mm^2: 0.075 mm
Feed fz INOX >900 N/mm^2: 0.084 mm

Cutting Data
Steel <500 N/mm^2: 250 m/min
Steel <750 N/mm^2: 230 m/min
Steel <900 N/mm^2: 200 m/min
Steel <1100 N/mm^2: 160 m/min
INOX <900 N/mm^2: 95 m/min
INOX >900 N/mm^2: 85 m/min

Notes
New generation available. Successor product: 207473.