Boring bar S20R-MCLNR12 for internal turning

Boring bar S20R-MCLNR12 for internal turning.

Suitable for insert CN_ _12_ _.

S – Bar is made from hardened steel

20 – Diameter of bar in mm

R – Length of the holder 200mm

- Method of clamping insert in to holder, with a clamp from above, and with screw through insert


C - Shape of turning insert which can be clamped into holder (RHOMBIC 80°)

- Angle under which the insert is attached to the holder (95°)

N - Clearance angle of insert for this holder (0°)

R - Orientation of turnig tool is right

12 - Insert size which can be clamped in to holder


  • Hardened steel - 42-45 HRc

Compatible with inserts . . . CN_ _12_ _.