Description
Solid carbide torus cutter with crystalline diamond sp^3 coating and double-relief-ground side clearance angle.

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

Features
Four cutting edges.
30 deg helix.
Ground recess.
Diameter tolerance e8.
Shank tolerance h6.
Maximum engagement ae 0.2xD.
Corner-radius tolerance +/-0.01 mm.

Dimensions
Diameter / corner radius: 12/0.5 mm
Cutting length Lc: 12 mm
Length L1: 38 mm
Neck diameter D1: 11 mm
Overall length L: 83 mm
Shank diameter Ds: 12 mm
Feed fz graphite: 0.105 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
209755 standard length; 209758 long-reach version.