SCMT120408-E47 WPP20S WPP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, a robust E47 chipbreaker and the square 90° geometry for dependable drilling and boring in steel — order the inserts via Metav Werkzeuge or contact our consultants for application support.

SCMT120408-E47 WPP20S drilling/boring indexable insert — 7° clearance, 0.8 mm corner radius — Walter Tools

The SCMT120408-E47 WPP20S is a square 90° indexable insert engineered for drilling and boring in steel, combining the Tiger·tec Silver coated grade with a chipbreaker designed for consistent chip control and stable machining.

• Tiger·tec Silver coated grade WPP20S
• Optimised chipbreaker E47 for controlled chips
• 90° square insert with 0.8 mm corner radius
• Designed for steel (ISO P) machining

Proven coating and grade for longer cutting performance

The Tiger·tec Silver coating together with the WPP20S grade delivers a balanced combination of wear resistance and toughness that is particularly well suited to machining in steel (ISO P). The coated carbide composition reduces flank and crater wear under the thermal loads typical of steel cutting, which translates into longer tool life and fewer insert changes during production. For operations where consistent cycle times and predictable replacement intervals matter, the metallurgical optimisation behind this grade supports a more economical and reliable process.

Stable chip control and bore integrity under load

A decisive benefit of this insert is the E47 chipbreaker, which is tuned to produce controlled, segmented chips during drilling and enlarging operations. Combined with the 7° free or clearance angle and the square 90° geometry, the insert promotes stable cutting forces and reduced vibration, helping to maintain roundness and surface integrity in the bore. The 0.8 mm corner radius increases edge strength for interrupted or heavy-engagement passes, lowering the risk of chipping and ensuring repeatable hole quality in demanding production runs.

Practical design for workshop integration and versatile use

The compact 12 size and the proven square form factor make this insert straightforward to integrate with standard toolholders used for drilling and boring operations. The insert’s specification supports the common thickness code 04 and the square 90° seating that many machining systems accept, simplifying inventory management. As a Walter Tools product from the Tiger·tec Silver series, this grade is described for a wide range of steel applications, offering dependable performance for both unalloyed and alloyed steels in batch and continuous production contexts.

Contact Metav Werkzeuge to discuss Walter Tools Tiger·tec Silver WPP20S inserts and to identify the optimal grade and toolholder configuration for your steel machining tasks — eMail: info@metav-werkzeuge.com — Tel: +49 2822 7131930

Technical Data

• Article number / SKU: SCMT120408-E47-WPP20S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte SCMT120408-E47 WPP20S Walter Tools
• Manufacturer: Walter Tools

Facts

• Insert size: 12
• Corner radius: 0.8 mm
• Free/clearance angle: 7°
• Form: Square 90°
• Thickness code: 04
• Tolerance class: M

Special features

• Coating / grade: Tiger·tec Silver, WPP20S
• Chipbreaker: E47
• Applicable material group: Steel (ISO P)
• Series: Tiger-tec Silver
• Application: drilling / boring indexable insert
• Execution: T

FAQ

What materials is this insert suitable for?
The SCMT120408-E47 WPP20S is designed for steel (ISO P) applications; the WPP20S grade and Tiger·tec Silver coating address the heat and chip characteristics typical of unalloyed and alloyed steels.

How does the E47 chipbreaker affect machining?
The E47 chipbreaker promotes controlled chip formation during drilling and boring, reducing build-up and helping to maintain stable cutting forces and bore quality when using the SCMT120408-E47 WPP20S insert.

What advantages does the 0.8 mm corner radius provide?
A 0.8 mm corner radius increases edge strength for interrupted cuts and heavier engagement, improving resistance to chipping and supporting consistent hole geometry with the square 90° insert.

Is this insert part of a recognised series from the manufacturer?
Yes; the insert belongs to Walter Tools’ Tiger-tec Silver series and uses the WPP20S coated carbide grade for a balance of wear resistance and toughness.

Which clearance angle is specified and why does it matter?
The insert has a 7° clearance angle, which helps to control contact between the insert flank and the workpiece, reducing friction and improving surface finish during drilling and boring.

Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned solely for explanation and identification purposes; there is no affiliation between our company and the trademark owners. The offered article is original, brand-new stock of the manufacturer.