SEHW1204AFN WKM W - Wendeplatten - Walter Tools

Benefit from a combination of productive cutting, consistent tolerances and a coated‑carbide grade designed for wide applicability; the WKM composition and 20° clearance enable stable chip control and reliable tool life in serial milling. Order the SEHW1204AFN WKM insert directly via Metav Werkzeuge or ask our consultants if needed.

SEHW1204AFN WKM – milling indexable insert, coated carbide, 20° clearance | Walter Tools

The SEHW1204AFN WKM is a square 90° milling indexable insert intended for productive finishing and roughing operations across a broad material spectrum, integrating a coated carbide grade from the Walter range for industrial machining.

• Coated carbide grade WKM
• 20° clearance angle
• Square 90° geometry, size 12
• Tolerance class H for consistent fit

High productivity through optimised grade and geometry

The combination of a coated carbide grade and a square 90° form provides high rigidity and reproducible cutting performance for milling operations. The WKM grade is a coated hardmetal designed to offer stable chip formation and good wear resistance; this reduces unplanned rework and supports continuous production runs. For operations that demand repeatability, the tolerance class H ensures inserts seat uniformly in standard toolholders, which simplifies tool setup and reduces downtime between tool changes.

Predictable results and simplified process integration

With a 20° clearance angle, the insert reduces rubbing on the flank face and lowers cutting forces in many milling applications, benefiting machining stability and surface finish. The insert's geometry supports both slotting and peripheral milling when used in compatible cutters; the result is consistent surface quality and predictable tool life. Where operators are consolidating tool inventories, the SEHW1204AFN family gives a practical balance between robustness and economy, making process planning and tool management more straightforward.

Compatibility considerations and material guidance

The WKM grade is a coated carbide series; suitability for specific materials should be verified against the manufacturer's application matrix. The insert’s square form and size 12 format make it suitable for general milling tasks across a variety of steels and non-ferrous substrates, depending on the exact cutter and cutting data chosen. If hard-to-machine alloys are involved, selecting appropriate speeds, feeds and coolant strategies will preserve the edge and maintain performance.

Practical support for workshop implementation

Adopting this insert supports a rational approach to tooling: fewer variants, clear mounting tolerances and a grade engineered for productivity. For teams looking to improve cycle time or reduce tool-change frequency, the combination of stable chip control and a durable coating often yields measurable gains in throughput. For technical clarifications or application-specific data, Metav Werkzeuge provides direct advisory support to align cutting parameters with the chosen cutter body and machine capability.

For advice on implementing Walter Tools' WKM inserts or to place an order for the SEHW1204AFN WKM, contact Metav Werkzeuge: eMail info@metav-werkzeuge.com or call +49 2822 7131930 — our consultants will support selection and process integration.

Technical data

• Article number: SEHW1204AFN-WKM-WALTER
• Description: SEHW1204AFN WKM
• Manufacturer: Walter Tools
• Product type: Fräswendeschneidplatte (milling indexable insert)
• Designation: SEHW1204AFN

Facts

• Clearance angle: 20°
• Plate form: Square 90°
• Plate size: 12
• Plate thickness code: 04
• Tolerance class: H

Special features

• Grade: WKM (coated carbide)
• Series: Walter Schneidstoffsorte - Serie offen
• Execution: W
• Application advice: Check product matrix for material suitability

FAQ

What materials is this insert suitable for?
The WKM grade is a coated carbide series; material suitability should be checked against the Walter application matrix for the SEHW1204AFN WKM to confirm compatibility with specific steels and non-ferrous alloys.

Can the insert be used for both finishing and roughing?
Yes. The square 90° geometry and coated grade balance stability and wear resistance, making the insert suitable for a range of finishing and moderate roughing tasks when paired with the correct cutter and cutting data.

How does the 20° clearance angle affect tool life?
A 20° clearance reduces flank contact and can decrease rubbing under many conditions, which helps to maintain edge integrity and can extend effective tool life when combined with correct feeds and speeds.

Is the tolerance class H important for assembly?
Tolerance class H ensures consistent seating in compatible toolholders, resulting in predictable positioning and reduced variation between indexable inserts during tool changes.

Where to find cutting data for this insert?
Cutting data and application recommendations are available from Walter Tools and Metav Werkzeuge; consult the manufacturer’s matrix for SEHW1204AFN WKM to determine optimal speeds, feeds and cooling strategies.

Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Protected trademarks and trade names are the property of their respective owners and are cited for explanatory purposes only. There is no affiliation between Metav Werkzeuge and the referenced brands. The offered article is an original, factory-new product of the manufacturer (Walter Tools).