LNMU090404R-L55T WPP35G Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Gold coating, a robust 0.4 mm corner radius and the dedicated chipbreaker geometry to deliver stable chip formation and productive machining of steel; order directly via Metav Werkzeuge or consult our specialists for application guidance.

LNMU090404R-L55T WPP35G — Milling indexable insert with Tiger·tec Gold coating for steel (ISO P) — Walter Tools

The LNMU090404R-L55T WPP35G is a rectangular milling insert designed for efficient, repeatable machining of steel, offering a balance of wear resistance and toughness for general-purpose routing and finishing.

• Tiger·tec Gold coating for extended tool life
• Suitable for machining steel (ISO P)
• 0° negative clearance for robust cutting
• 0.4 mm corner radius for durable edge

Productive machining with advanced coating technology

The insert combines Tiger·tec Gold surface treatment with a coated carbide substrate to raise process reliability and increase productivity when machining steels. The WPP35G grade is engineered for a blend of wear resistance and toughness, which helps maintain cutting-edge performance under typical heat and chip-formation conditions encountered in steel turning and milling. The dedicated chipbreaker L55T aids controlled chip formation, reducing interruptions and enabling steadier cycle times on production runs.

Geometry that supports predictable tool life

A 0° negative clearance and a 0.4 mm corner radius create a robust cutting edge that tolerates intermittent engagement and moderate shock loads without rapid edge breakdown. The rectangular insert form and tolerance class M ensure repeatable seating and indexing in the toolholder, which lowers set-up variability and supports consistent surface quality across repeated tool changes. This geometry is particularly beneficial where secure edge retention and low downtime are priorities.

Practical integration for workshop operations

The insert’s chip control and coating synergy permit higher process security across common steel applications classified under ISO P. As a result, the grade reduces the frequency of tool changes and supports efficient spindle utilisation. Selection of appropriate speeds and feeds remains essential; the insert’s composition and chipbreaker simplify parameter tuning, helping machinists reach a balance between metal removal rate and surface finish without excessive trial-and-error.

Material focus and application guidance

This indexable plate is intended for machining steel; it is formulated to handle the thermal and mechanical demands of carbon and alloy steels. While the insert excels in general-purpose machining and semi-finishing, pairing the geometry with suitable clamping and coolant strategies will enhance performance. If uncertainty remains about cutting parameters or holder compatibility, Metav Werkzeuge’s technical team can advise on optimised running conditions and clamping solutions to meet specific production goals.

For precise application advice or to place an order for Walter Tools Tiger·tec Gold inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — our specialists will assist with selection and process recommendations.

Technical Data

• Article number: LNMU090404R-L55T-WPP35G-WALTER
• Designation: LNMU090404R-L55T WPP35G
• Product type: Milling indexable insert
• Manufacturer: Walter Tools
• Series: Tiger-tec Gold

Facts

• Corner radius: 0.4 mm
• Relief/clearance: 0° (negative)
• Plate size: 09
• Thickness: 04
• Tolerance class: M

Special features

• Coating: Tiger·tec Gold
• Material: coated carbide (WPP35G)
• Chipbreaker: L55T
• Shape: Rectangular
• Suitability: Steel (ISO P)
• Grade characteristics: balanced wear resistance and toughness

FAQ

What steels is this insert intended for?
This Walter Tools milling indexable insert LNMU090404R-L55T WPP35G is specified for machining steels classified under ISO P, including common unalloyed and alloyed steels.

How does the Tiger·tec Gold coating help in production?
The Tiger·tec Gold coating on the WPP35G grade improves wear resistance and thermal stability, which supports longer tool life and steadier machining performance when cutting steel.

Is the chipbreaker L55T suitable for continuous and interrupted cuts?
The L55T chipbreaker is designed to promote controlled chip formation in a range of steel machining scenarios; combined with the insert’s geometry it offers reliable behaviour in both continuous and intermittent engagements.

What does the 0° negative clearance mean for clamping and toolholder choice?
A 0° negative clearance provides a robust rake and edge support for heavy cuts; selecting a rigid, compatible toolholder that accommodates rectangular inserts is recommended to maintain edge stability and repeatability.

Can this insert be used for finishing operations?
Yes, the balanced properties of the WPP35G grade and the 0.4 mm corner radius allow for semi-finishing and finishing tasks, provided cutting parameters are adjusted to the desired surface specification.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

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