Indexable Turning Insert PAFANA WNMG 080408 SU FK25W – Pafana

Indexable turning insert PAFANA WNMG 080408 SU FK25W is a single-sided rhombic insert engineered for metal turning operations on lathes. The WNMG 080408 geometry corresponds to an 80° approach angle and a 4.8 mm inscribed circle, providing a balance between edge strength and access for profiling. The FK25W grade/coating is formulated for general turning, finishing and semi-finishing, delivering predictable wear behavior across a range of ferrous materials.

Advantages

The insert combines a robust edge geometry with a coated grade to extend tool life and maintain dimensional accuracy during prolonged cutting. Its single-sided design simplifies indexing and replacement while the rhombic shape improves clearance for internal and external turning. FK25W coating enhances resistance to abrasive and adhesive wear at moderate cutting speeds.

Suitable for

• General turning of steels and cast irons
• Finishing and semi-finishing operations on external cylindrical surfaces
• Light profiling and shoulder turning where an 80° approach is preferred
• Lathe work requiring quick insert indexing and repeatable geometry

Key specifications

• Insert geometry: rhombic with 80° approach angle
• Inscribed circle / size: 4.8 mm
• Type: single-sided indexable insert
• Recommended applications: finishing and semi-finishing metal turning
• Coating/grade characteristics: wear-resistant coated grade designed for moderate cutting speeds

How to use

Install the insert into a compatible WNMG seat in the toolholder following the toolholder manufacturer's clamping procedure. Ensure correct seat seating and secure clamping torque to prevent movement during cutting. Select cutting parameters (speed, feed, depth of cut) appropriate for the workpiece material and the FK25W grade; start with conservative speeds and increase while monitoring tool wear and surface finish. Index or replace the insert when edge wear, chipping or loss of dimensional control is observed.

Usage recommendations

For best results, match the insert with a toolholder designed for WNMG geometry and use coolant when machining steels with heavy built-up edge tendencies. Monitor cutting forces and surface finish during initial passes to fine-tune feeds and speeds for the FK25W grade.