TCMT16T308-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Combine high wear resistance, optimised chip control and a secure 7° relief angle for reliable cast-iron turning; order the insert directly via Metav Werkzeuge or consult our specialists for application support.

TCMT16T308-MK4 WKK20S turning insert – triangular 60°, 7° relief | Walter Tools

A TCMT16T308-MK4 WKK20S indexable turning insert engineered for productive cast-iron turning and boring applications.

• Tiger·tec Silver coating, WKK20S grade
• Optimised chip control MK4 chipbreaker
• 7° relief angle for secure cutting
• Triangular 60° insert, 0.8 mm corner radius

Achieve consistent productivity in cast-iron machining

The combination of Tiger·tec Silver technology and the WKK20S grade delivers measurable benefits when machining abrasive cast-iron alloys. The coated-carbide composition is tailored to the short, breaking chips and high abrasive wear typical for these materials, offering extended tool life and fewer insert changes. In practice this means more uninterrupted spindle time and a reduction in fixture handling — a direct contribution to lower unit costs and steadier throughput in serial production.

Geometry that secures engagement and surface quality

The insert’s triangular 60° form with a 0.8 mm corner radius provides a robust cutting edge for both interrupted cuts and steady axial engagement. The 7° relief reduces rubbing at the flank, improving cutting stability and decreasing heat build-up. The MK4 chipbreaker is optimised for cast-iron behaviour, promoting predictable chip formation and easier evacuation; the result is improved surface finish and reliable repeatability across batches, reducing rework and inspection effort.

Practical benefits for process reliability and tool handling

Designed as an indexable insert for turning and boring, this solution supports rapid edge changes and consistent set-up parameters. The insert’s execution (T) and plate designation make tool management straightforward within standard clamping systems, while the coated grade supports both roughing and mixed-operation scenarios in cast-iron production. Partnering this insert with proven clamping hardware and consistent tool-setting practices leads to higher process security and fewer unexpected interruptions on the shop floor.

Integration into workflow and material suitability

The TCMT16T308-MK4 WKK20S is explicitly suited to cast iron applications and benefits workshops seeking a balance between durability and versatile cutting performance. The triangular shape allows multiple indexing opportunities per insert, enhancing cost efficiency in high-volume environments. For best results, combine the insert with stable toolholders and verified cutting data for cast-iron grades; this approach ensures safe chip control and consistent part quality while reducing frequency of tool changes.

Contact Metav Werkzeuge today for application advice or to secure the appropriate Walter Tools TCMT16T308-MK4 WKK20S insert; specialists are available by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: TCMT16T308-MK4-WKK20S-WALTER
• Designation: TCMT16T308-MK4 WKK20S
• Brand: Walter Tools
• Series: Tiger-tec Silver
• Grade: WKK20S
• Tolerance class: M

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Insert size: 16
• Plate form: Triangular 60°
• Chipbreaker: MK4
• Thickness: T3

Special features

• Coating: Tiger·tec Silver
• Material suitability: Cast iron (K)
• Execution: T
• Application: Turning / boring indexable insert

FAQ

What materials is this insert intended for?
The TCMT16T308-MK4 WKK20S from Walter Tools is optimised for cast iron applications and is designed to handle the abrasive wear and short-chip behaviour typical of these materials.

How does the MK4 chipbreaker affect performance?
The MK4 chipbreaker on this Walter Tools insert promotes controlled, short chips in cast-iron turning, improving evacuation and contributing to a more consistent surface finish.

How many usable cutting edges does the triangular insert provide?
Its triangular 60° geometry allows for multiple indexings; the shape offers up to three usable cutting edges before the insert requires replacement.

What does the 7° relief angle mean for machining?
A 7° relief reduces flank contact and heat generation during cutting, which improves stability and helps to extend the life of the cutting edge when machining cast iron.

Is this insert suitable for both roughing and finishing operations?
Yes — the combination of WKK20S grade and the MK4 chipbreaker makes the insert versatile for roughing and mixed-operation tasks in cast-iron machining, supporting both material removal and acceptable surface quality.

Hersteller: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany; www.walter-tools.com; info@walter-tools.com

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