LNHU160812-F57T WKP35S Wendeplatten - Walter Tools

Take advantage of the WKP35S grade and the Tiger·tec Silver coating for consistent chip control and extended edge life; the combination of a robust negative 0° rake and the F57T chipformer ensures productive milling in steel and cast iron. Order the insert directly via Metav Werkzeuge or consult the specialists for application support.

LNHU160812-F57T WKP35S milling indexable insert — Walter Tools, Tiger·tec Silver, negative 0° rake

LNHU160812-F57T WKP35S is a rectangular milling indexable insert designed for demanding steel and cast iron applications, offering a resilient cutting edge and proven chip control in interrupted and continuous cuts.

• Tiger·tec Silver coated grade WKP35S
• Optimised chipformer F57T for reliable chips
• Negative 0° rake for robust engagement
• 1.2 mm corner radius for consistent edge life

Robust performance for steel and cast iron machining

The WKP35S grade, realised in Walter Tools' Tiger·tec Silver technology, is tailored to the thermal and abrasive conditions encountered in machining steel and cast iron. This coated carbide grade balances wear resistance and fracture toughness to maintain a stable cutting edge under fluctuating loads. The negative 0° rake increases cutting-edge strength, which reduces the risk of chipping in interrupted cuts and when machining castings with variable material density. For production environments seeking dependable cycle times, this geometry supports a stable process and predictable regrinding intervals.

Reliable chip control and surface quality

Equipped with the F57T chipformer, the insert delivers controlled chip breaking and evacuation, reducing tool pressure spikes and heat concentration at the cutting zone. A consistent chip shape minimises recutting and helps to preserve the workpiece finish; the 1.2 mm corner radius further contributes to edge stability and can improve surface integrity on demanding components. Clear chip flow also supports higher feed rates where cycle-time reduction is a priority, making the insert suitable for both roughing and mixed finishing steps in stainless workflows where steel and cast iron dominate.

Process security and easier tool planning

The rectangular format with the specified thickness and the H tolerance class provides repeatable seating and indexing, which simplifies toolset management on machining centres. The coated carbide substrate of the Tiger·tec Silver series resists flank wear and maintains dimensional predictability across tool life, supporting lean manufacturing principles. For maintenance planning, predictable wear behaviour reduces unscheduled downtime and enables longer uninterrupted production runs, translating into a measurable improvement in overall equipment effectiveness.

Practical application notes for production planners

Selection of the WKP35S grade is appropriate when process robustness is more critical than maximising finish at the lowest feeds. Its balanced properties favour medium to high cutting speeds common in modern milling strategies for steel and cast iron. Tooling engineers should pair the insert with appropriate cutter bodies rated for the insert format and verify recommended cutting data from Walter Tools to match workpiece hardness and required chip thickness. When optimising for economy, the combination of a tough grade and effective chip control frequently extends net tool life and reduces total machining cost per part.

For Walter Tools' robust Tiger·tec Silver inserts and tailored application advice, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for technical guidance and supply options.

Technical Data

• Article number: LNHU160812-F57T-WKP35S-WALTER
• Product type: Fräswendeschneidplatte (milling indexable insert)
• Series: Tiger·tec Silver
• Grade: WKP35S
• Manufacturer: Walter Tools
• Designation: LNHU160812-F57T WKP35S

Facts

• Corner radius: 1.2 mm
• Format: 16
• Thickness: 08
• Rake angle: 0° (negative)
• Tolerance class: H

Special features

• Coating: Tiger·tec Silver coated carbide
• Chipformer: F57T
• Shape: Rectangular
• Material suitability: Steel (P), Cast iron (K)
• Robust edge for interrupted cuts

FAQ

What materials is this insert suitable for? The insert is designed for machining steel (P) and cast iron (K); the WKP35S grade and Tiger·tec Silver coating address both thermal and abrasive conditions typical for these groups.

How does the F57T chipformer affect milling? The F57T chipformer provides controlled chip breaking and evacuation, which reduces recutting and stabilises cutting forces for improved surface quality and tool life with this Walter Tools insert.

Why choose a negative 0° rake for this insert? A negative 0° rake increases cutting-edge strength and resistance to chipping, especially useful in interrupted cuts or when material inconsistency occurs in cast parts.

What benefit does the 1.2 mm corner radius bring? The 1.2 mm corner radius increases edge robustness and can improve surface integrity, making the insert suitable for applications where a balance of strength and finish is required.

Manufacturer: Walter AG; Headquarters: Tübingen, Germany

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