Description
Solid carbide torus cutter with eccentric relief grinding and polished flutes.

Application
For machining non-ferrous metals and long-chipping aluminium workpieces.

Features
Type W.
Three cutting edges.
45 deg helix.
Ground recess.
Coating: Uncoated.
Dimensions similar to DIN 6527.

Advantages
Outstanding chip evacuation and stable cutting.

Product Data
Product type: Solid Carbide Torus Cutter
Article family: 206190
Size: 20/4.0 mm

Dimensions
Diameter / corner radius: 20/4.0 mm
Cutting length Lc: 41 mm
Corner radius R1: 4 mm
Length L1: 52 mm
Neck diameter D1: 19 mm
Overall length L: 104 mm
Shank diameter Ds: 20 mm
Feed fz aluminium: 0.12 mm
Feed fz aluminium cast: 0.13 mm

Cutting Data
Aluminium and plastics: 180 m/min
Aluminium: 140 m/min
Aluminium cast >10% Si: 105 m/min
Copper: 80 m/min
CuZn: 100 m/min

Notes
Corner-radius tolerances: R1=0.5 +/-0.02 mm; R1>0.5-1.5 +/-0.03 mm; R1>1.5 +/-0.05 mm.