Patent ID: 11951553
Assignee: ISCAR, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. The cutting head (20) according to claim 8, wherein:
each front surface (26) has a secondary relief surface (40) adjacent its respective secondary cutting-edge portion (32),
in a cross-section taken in a fourth transverse plane (PT4) perpendicular to the fourth imaginary radial plane (PR4) and containing the secondary median point (NMS) of the associated secondary cutting-edge portion (32), the adjacent secondary relief surface (40) forms a fourth relief angle (α4), relative to a fourth imaginary horizontal reference line (HL4) perpendicular to the central axis (A1), and
the fourth acute relief angle (α4) is equal to the first, second, and third acute relief angles (α1, α2, α3).