Description
Solid carbide ball nose milling cutter with crystalline diamond sp^3 coating.

Application
For reliable machining of fibre-reinforced composites, CRP, GRP and graphite.

Features
Two cutting edges.
30 deg helix.
Ground recess.
Diameter tolerance f8.
Shank tolerance h6.
Maximum engagement ae 0.2xD.
Radius-contour tolerance +/-0.01 mm.

Dimensions
Diameter / shank variant: 8 mm
Cutting length Lc: 12 mm
Length L1: 20.5 mm
Overall length L: 100 mm
Shank diameter Ds: 8 mm
Feed fz graphite: 0.075 mm

Cutting Data
PVDF GF20: 200 m/min
POM GF25: 190 m/min
PA 6.6 GF30: 170 m/min
PEEK GF30: 150 m/min
PTFE GF25: 180 m/min
PEEK CF30: 160 m/min
Honeycomb sandwich: 350 m/min
GRP: 190 m/min
CRP: 190 m/min
Graphite: 340 m/min

Notes
209776 standard length; 209781 long-reach version. Use correction factor 1.25 for designated long-shank variants.