nach oben

G: Cylindrical bores, up to Ø 200 mm

Through bores; diameters 4 – 200 mm
Blind bores; diameters 6 – 200 mm


  • Can be used up to tolerance class IT8.
  • Processing of all metallic materials with a tensile strength of up to 1400 N/mm2 and a maximum hardness of HRC = 45.
  • Attainable surface finish Rz < 1 micron (Ra = 0.2 micron).
  • Can be used on CNC turning, drilling or milling machines and machining centers or on conventional machine tools.
  • Machining direction thrusting with clockwise rotation.


  • Reliable function; high precision
  • Short primary processing time
  • Convenient adjustment of diameter in 1 micron stages
  • Only nominal lubrication required (oil or emulsion)
  • Automatic release for tool withdrawal avoids damage to the burnished surface
  • Simple replacement of wear parts

3D-View G1.3


Basic construction

  • The tool holders are supplied with either Morse taper or cylindrical clamping shafts. Special designs are possible on request.
  • Roller heads are interchangeable within the diameter range. Tools can be fitted with own in infeed on request.

Video G1.2

Video G1.1