SCMT09T304-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of long tool life, reliable chip control and straightforward geometry for efficient cast-iron machining. Order the inserts directly via Metav Werkzeuge or ask the consultants for material-specific recommendations and application guidance.

SCMT09T304-RK4 WKK10S – Drilling/bore and turning indexable insert, Tiger·tec Silver, Walter Tools

SCMT09T304-RK4 WKK10S is a coated indexable insert developed for productive machining of cast iron in both drilling and turning operations

• Tiger·tec Silver coated carbide
• Optimised for cast iron machining
• RK4 chipbreaker for consistent chip control
• 7° clearance, 0.4 mm nose radius

Engineered for productive cast-iron machining

The insert uses the WKK10S grade from the Tiger·tec Silver series, a coated cemented carbide formulation tailored to the abrasive wear and frequently short, breaking chips typical of cast iron (ISO K). This composition provides a balance between wear resistance and toughness, which extends service intervals and reduces unexpected tool changes. For shops running continuous shifts, the predictable performance of this grade supports stable cycle times and lowers per-part tooling costs while maintaining reproducible results.

Reliable geometry for consistent chip control and surface quality

The RK4 chipbreaker and square 90° cutting form ensure controlled chip formation and evacuation in interrupted and continuous cuts. With a 7° clearance angle and a 0.4 mm corner radius, the geometry is tuned to deliver steady cutting forces and a good surface finish on grey and nodular cast irons. The modest nose radius improves edge strength while limiting radial forces, which helps to maintain dimensional accuracy and reduce vibration during both light and medium finishing passes.

Dual-purpose capability for turning and bore operations

This insert’s SCMT geometry represents a standard square insert form with four usable cutting edges and a stable pocket seat. The T3 thickness and size code 09 offer a compact profile suitable for many turning and small-bore drilling holders that accept SCMT-style inserts. The result is flexibility at the tool crib: one insert type can be stocked for multiple operations, simplifying inventory and enabling quick tool changes without sacrificing process reliability.

Measurable benefits for workshop productivity

Applying this grade and geometry yields two clear operational benefits: extended cutting life through the Tiger·tec Silver coating and reduced setup frequency thanks to consistent chip behaviour from the RK4 breaker. These technical advantages translate into higher machine uptime and more predictable component throughput. For production planners, that means fewer interruptions and a clearer understanding of tool consumption rates across cast-iron jobs.

For application-specific advice on deploying the Walter Tools SCMT09T304-RK4 WKK10S insert in a machining cell or to request availability from Metav Werkzeuge, please contact Metav Werkzeuge for tailored recommendations and order support.

Technical data

• Article number: SCMT09T304-RK4-WKK10S-WALTER
• Designation: SCMT09T304-RK4 WKK10S
• Manufacturer: Walter Tools
• Product type: Drilling/bore and turning indexable insert

Facts

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Plate form: Square 90°
• Plate size: 09
• Plate thickness: T3
• Tolerance class: M

Special features

• Grade: WKK10S (Tiger·tec Silver)
• Coating: coated cemented carbide
• Chipbreaker: RK4
• Series: Tiger·tec Silver
• Application: cast iron (ISO K)

FAQ

What materials can this insert machine effectively? The SCMT09T304-RK4 WKK10S insert from Walter Tools is optimised for cast iron (ISO K); the WKK10S grade and Tiger·tec Silver coating address abrasive wear and promote controlled chip breaking in this material group.

What does the WKK10S grade indicate? WKK10S is a Walter Tools grade within the Tiger·tec Silver coating technology; it identifies a coated cemented carbide designed for wear resistance and reliable edge life when machining cast-iron workpieces.

How does the RK4 chipbreaker influence performance? The RK4 chipbreaker produces short, controllable chips and aids coolant access to the cutting zone, which improves chip evacuation and reduces the risk of entangling or long, stringy chips during interrupted cuts.

Which geometric features affect surface finish and stability? Key geometry parameters are the 7° clearance angle and the 0.4 mm corner radius combined with a 90° cutting edge; these control contact conditions, limit deflection and support consistent surface quality in turning and bore operations.

Is the insert suitable for both drilling and turning toolholders? The SCMT designation corresponds to a standard square insert form with four cutting edges; the SCMT09T304-RK4 geometry is intended for holders that accept SCMT-size inserts, offering versatility across compatible drilling and turning tool systems.

Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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