Pafana NNBE 2525 S20 NOZ TOK.ISO 6 R — metalworking insert holder, ISO 6, external turning

Pafana NNBE 2525 S20 NOZ TOK.ISO 6 R is a metalworking insert holder engineered for external turning on lathes. It accepts ISO 6 indexable inserts and features a 25x25 mm shank profile in the S20 variant. The holder provides rigid clamping and accurate insert location for facing, turning and light finishing operations on a range of metal components.

Advantages

The holder offers stable insert clamping and repeatable indexing to maintain consistent cutting geometry during multi-edge use. Its compact 25×25 shank and S20 configuration ensure compatibility with standard turret and tool post setups. Precision seating reduces vibration and improves surface finish while the design supports quick insert changes for reduced machine downtime.

Suitable for

• External turning of shafts and cylindrical parts
• Facing operations on lathe workpieces
• Light finishing and relief passes on steel and non-ferrous metals
• Applications requiring frequent insert indexing or replacement

Key specifications

• Insert system: ISO size 6 compatible indexable inserts
• Shank profile: 25 × 25 mm square shank (S20 variant)
• Operation type: External turning / facing
• Mounting orientation: Right-hand turning configuration
• Material contact: Designed for common ferrous and non-ferrous workpiece materials

How to use

Mount the holder securely in the lathe turret or tool post ensuring correct shank seating and alignment. Install an ISO 6 indexable insert into the pocket and fasten according to the toolmaker's torque recommendations. Set cutting parameters appropriate to the workpiece material and insert grade, then perform facing or turning passes with controlled feed and depth of cut. Index the insert to a fresh cutting edge as wear develops to maintain dimensional accuracy and surface finish.

Usage recommendations

Use compatible ISO 6 inserts and verify clamp screws and seating surfaces are clean before assembly. Match feed, speed and depth of cut to the insert grade and material to extend tool life. Periodically check holder alignment and mounting tightness to prevent chatter and ensure repeatable results.