Carbide Turning Insert Pafana PLYTKA WNMG 080404 STK FM30S – WNMG 080404 indexable lathe insert

Indexable carbide turning insert Pafana PLYTKA WNMG 080404 STK FM30S is an exchangeable lathe insert designed for general turning applications. The WNMG 080404 geometry provides an 80° rhombic shape with a 0.4 mm corner radius and a 4.76 mm inscribed circle, suitable for a wide range of external turning and light finishing operations. Supplied in the FM30S carbide grade, this insert balances wear resistance and toughness for machining steel and non-ferrous alloys when used with compatible toolholders.

Advantages

The insert’s WNMG 080404 geometry enables versatile cutting directions and positive engagement for controlled chip flow. A small 0.4 mm corner radius allows for fine surface finishes and accurate profile work while maintaining edge strength for routine turning. The FM30S grade offers consistent hardness and wear resistance to provide predictable tool life across interrupted and continuous cuts. Indexable design reduces downtime by allowing quick rotation or replacement of cutting edges without resetting the tool.

Suitable for

• External turning of steel components
• Light finishing and profiling passes
• Machining non-ferrous alloys and aluminum
• Applications with compatible lathe toolholders for WNMG inserts

Key specifications

• Insert geometry: WNMG (80° rhombic)
• Corner radius: 0.4 mm
• Inscribed circle diameter: 4.76 mm
• Carbide grade: FM30S
• Application type: Indexable turning insert for lathes

How to use

Install the WNMG 080404 insert in a compatible WNMG-indexed toolholder following the toolholder manufacturer’s clamping and torque instructions. Select cutting parameters appropriate for the workpiece material and the FM30S grade: moderate cutting speeds and feeds for steel, higher speeds for non-ferrous alloys, and shallow depths of cut for finishing passes. Rotate the insert to a fresh edge or replace it when wear reaches the tool life limits to maintain dimensional accuracy and surface quality.

Usage recommendations

For best results, ensure correct seating and secure clamping in the toolholder, use appropriate coolant or lubrication for the machined material, and adjust speeds and feeds to minimize vibration. Inspect insert edges regularly and index to the next corner at the first signs of significant wear or chipping.