8 x 8mm Internal Corner Turning Tool Carbide P25/P30, Right-Hand, DIN 4974 (ISO 9) - Werner Wilke Zerspanungstechnik GmbH

Reliable finishing for confined internal profiles thanks to HM P25/P30 carbide and diamond-ground cutting plates, combined with DIN 4974 (ISO 9) compliance and a compact 8 x 8 mm cross-section; order the tool directly via Metav Werkzeuge or ask our consultants if needed

Internal corner turning tool DIN 4974 (ISO 9) — 8 x 8 mm, HM P25/P30, right-hand (Wilke)

Internal corner turning tool for precision internal profiling and finishing in confined bores, built to DIN 4974 (ISO 9) standards with a steel shank fitted with diamond-ground cemented carbide cutting plates

Diamond-ground carbide cutting plates
Complies with DIN 4974 (ISO 9) standard
Minimum bore Ø 14 mm for compact applications
Right-hand tool with steel shank construction

High-precision geometry for repeatable internal corners

The tool combines a steel shank with diamond-ground cemented carbide plates, delivering consistent edge geometry and extended tool life. The use of HM P25/P30 carbide provides a balanced mix of toughness and wear resistance, making the insert suitable for routine finishing operations where surface quality and dimensional consistency are essential. The tool’s construction reduces vibration in confined bores, which in turn improves surface finish and repeatability for internal corner features on turned components.

Designed for small, confined bores and accurate profiling

With a compact 8 x 8 mm cross-section and a minimum usable bore of 14 mm, the tool is optimised for internal corner work in small to medium-sized cavities. The right-hand cutting orientation suits conventional lathe set-ups where cuts enter from the workpiece face, and the overall length of 125 mm ensures sufficient reach without excessive overhang. This combination makes the insert particularly effective for producing accurate internal radii and shoulder transitions in components where accessibility is limited and precision is required.

Standards, usability and maintenance explained

Compliant with DIN 4974 (ISO 9), the design supports toolholder interchangeability and process standardisation across workshops. The diamond-ground plates permit easy regrinding cycles when needed; however, the carbide grade’s wear characteristics typically extend interval lengths between reconditioning for many production environments. Simple inspection of the cutting edge after defined cycle counts and routine cleaning of the shank are recommended to maintain consistent cutting performance and to protect the carbide seating.

For technical advice on the Wilke internal corner turning tool with HM P25/P30, or to arrange supply from local stock in Emmerich, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or +49 2822 7131930 — expert consultants are available to confirm compatibility with specific applications

Technical data

• Article number: 4118615052NW
• Product type: Internal corner turning tool
• Standard: DIN 4974 (ISO 9)

Facts

• Overall length: 125 mm
• Cross-section: 8 x 8 mm
• Minimum bore diameter: 14 mm
• Packaging unit: 5

Special features

• Material: cemented carbide P25/P30
• Right-hand cutting direction
• Steel shank with diamond-ground carbide cutting plates
• DIN 4974 (ISO 9) compliance

FAQ

What is the minimum bore diameter this tool can be used in?
The tool is specified for use in bores from 14 mm; the compact 8 x 8 mm cross-section and overall length of 125 mm support machining in confined internal profiles.

Which carbide grade is mounted on the insert and what are its strengths?
The insert is made from HM P25/P30 cemented carbide, offering a balance of toughness and wear resistance suitable for finishing and routine internal profiling operations.

Is the tool compatible with standard toolholders according to norms?
Yes; the geometry follows DIN 4974 (ISO 9), enabling straightforward interchangeability with compliant toolholders and supporting process standardisation.

Does the tool cut left- or right-hand?
This variant is a right-hand internal corner turning tool, intended for conventional right-hand lathe cutting directions.

What construction features support edge stability and surface finish?
A steel shank fitted with diamond-ground carbide cutting plates reduces vibration and secures a precise cutting edge, improving surface finish and repeatability in internal features.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com