SCMT09T312-RP4 WPP20G - Walter Tools

Take advantage of the Tiger·tec Gold grade and the RP4 chipbreaker for efficient, consistent steel machining; the combination of proven wear resistance and controlled chip formation supports stable production cycles. Order the insert directly via Metav Werkzeuge or contact our consultants for application-specific advice.

SCMT09T312-RP4 WPP20G – Turning insert, RP4 chipbreaker, 7° relief (Walter Tools)

A SCMT09T312-RP4 WPP20G indexable turning insert designed for productive steel machining, combining the Tiger·tec Gold coating technology with an RP4 chipbreaker and a square 90° geometry for versatile finishing and semi-finishing operations.

• Tiger·tec Gold coated WPP20G grade
• RP4 chipbreaker for reliable chip control
• 7° relief angle for stable cutting
• Square 90° insert with 1.2 mm corner

High-efficiency steel machining with proven wear resistance

The SCMT09T312-RP4 WPP20G delivers a balance of wear resistance and toughness thanks to the Tiger·tec Gold coating and the WPP20G carbide class. This combination is engineered for steel machining (ISO group P) where thermal loads and varied chip forms occur. The result is longer tool life and fewer interruptions for index changes, which translates into measurable gains in process efficiency and predictable tool consumption. The square 90° format provides rigidity for shoulder cuts and general turning operations while the medium tolerance class contributes to reproducible performance across batches.

Consistent chip control and surface quality

The RP4 chipbreaker is configured for controlled chip formation in a wide range of steel grades, reducing the risk of entangling long swarf and supporting a safer, cleaner machining environment. Combined with the insert’s 7° relief, the geometry minimises rubbing and improves cutting action, which helps achieve a consistent surface finish and reduces secondary operations. For production environments where cycle time and repeatability matter, this geometry supports reliable part quality and fewer scrap incidents.

Robust geometry for secure clamping and economical indexing

With a 1.2 mm corner radius and a T3 plate thickness, the insert’s geometry supports stable cutting forces and good edge strength for both finishing and light semi-finishing. The square shape allows four usable cutting edges per insert, improving cost-per-edge and reducing tooling expenditure over time. The medium corner radius provides a compromise between strength and edge fineness, enabling small run-off radii while still offering robustness under interrupted cuts. Together, these features contribute to a predictable, economical turning process in industrial production.

Contact Metav Werkzeuge for application trials, availability or material-specific recommendations on Walter Tools inserts — eMail: info@metav-werkzeuge.com | Phone: +49 2822 7131930

Technical data

• SKU: SCMT09T312-RP4-WPP20G-WALTER
• Article designation: SCMT09T312-RP4 WPP20G
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold

Facts

• Relief angle: 7°
• Corner radius: 1.2 mm
• Plate form: Square 90°
• Plate size: 09
• Plate thickness: T3
• Tolerance class: M

Special features

• Grade: WPP20G (Tiger·tec Gold coated carbide)
• Chipbreaker: RP4
• Material application: Steel (ISO group P)
• Geometry: Square insert, multi-edge indexing
• Typical use: Finishing and light semi-finishing in steel

FAQ

What steel grades is this insert suited for?
The insert is designed for ISO group P — various unalloyed and alloyed steel grades — and the WPP20G grade offers a balance of wear resistance and toughness for general turning tasks.

How does the RP4 chipbreaker improve production?
The RP4 chipbreaker shapes chips for predictable evacuation and reduced risk of swarf-related interruptions, supporting continuous operation and improved surface consistency with the Tiger·tec Gold coating.

How many usable edges does the square insert provide?
The square 90° geometry provides four indexing positions per insert, which helps lower tooling cost per edge and increases uptime between insert replacements.

Is the insert suitable for interrupted cuts?
Yes. The 1.2 mm corner radius and T3 thickness offer edge strength that tolerates light interruptions while maintaining good surface finish potential.

What is the relief angle and why does it matter?
The insert features a 7° relief angle; this reduces flank contact and improves chip flow, contributing to lower cutting forces and consistent finishes during turning operations.

The Walter AG (brand: Walter Tools), headquartered in Tübingen, is among the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik group. Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned here solely for explanation; there is no connection between our company and the stated manufacturers. The offered item is an original, factory-new product from the manufacturer.