TPMX 170408 T9225 Wendeplatten - Tungaloy

Take advantage of the CVD-coated carbide and T9225 universal grade for reliable performance in medium to heavy steel drilling, combined with the triangular 17 mm geometry and 0.8 mm corner radius for stable chip control and long tool life. Order directly via Metav Werkzeuge or consult our specialists for application support.

TPMX 170408 T9225 triangular insert for drilling — Tungaloy

TPMX170408R-G T9225 is a triangular indexable insert for drilling systems, designed for robust medium to heavy steel machining and secured clamping in dedicated drill bodies

• CVD-coated carbide for robust performance
• Universal T9225 grade for medium to heavy steel
• Triangular 17 mm plate, 0.8 mm corner radius
• Designed for indexable drilling systems, G chipbreaker

Engineered for sustained cutting performance in steel drilling

The insert combines a CVD-coated carbide substrate with the T9225 grade to deliver a balance of hardness and toughness suited to interrupted or variable cutting conditions. The coating reduces flank wear and enhances edge stability, which translates into fewer index changes and longer productive periods between tool changes. For machining tasks in medium to heavy steel, this results in consistent hole quality and reduced overall machining costs due to extended insert life and lower scrap risk.

Geometry and chip control that stabilise the process

A triangular 17 mm plate form with a 0.8 mm corner radius and an 11° relief angle offers a robust cutting edge that resists chipping under fluctuating engagement. The G chipbreaker is engineered to manage chip formation in through-hole and blind-hole drilling, improving evacuation and reducing workpiece surface damage. Correct matching of insert geometry to the drill body and seat ensures reliable clamping and minimal runout, which together support dimensional accuracy and stable cycle times.

Simple system integration to maintain production continuity

The insert is intended for use within a complete drilling system comprising a drill body, matching insert seat and a clamping screw. The insert features a special hole and hole style for secure retention in compatible holders; verify seat geometry and drill diameter before assembly. Using standardised system components and the manufacturer article number ensures fast replacement and repeatable setups, reducing downtime and supporting uninterrupted production flow.

Contact Metav Werkzeuge for tailored application advice and to request the matching drill body or technical datasheet — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 4856538-Tungaloy
• Manufacturer article number: 4856538
• SKU: TUN4856538
• Label: TPMX170408R-G T9225
• Model series: Bohrwendeschneidplatten
• Material: Carbide
• Coating: CVD

Measurements

• Inscribed circle / ISO: 170408
• Plate size: 17 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief (free) angle: 11°
• Cutting edge angle: 60°

Design and features

• Plate form: triangular
• Chipbreaker: G
• Hole: special
• Hole style: special
• Application: drilling with indexable insert tools
• Grade: T9225 — universal for medium to heavy steel

FAQ

What materials is this insert suited for? The Tungaloy TPMX170408R-G T9225 insert is formulated for medium to heavy steel machining; the T9225 grade and CVD coating provide the toughness and wear resistance required for such applications.

How does the chipbreaker affect performance? The G chipbreaker on this triangular insert promotes controlled chip formation and evacuation during drilling, which reduces the risk of chip jamming and supports consistent surface finish and hole integrity.

Is special seating required for installation? Yes, the insert uses a special hole and hole style that must be matched to a compatible drill body and clamping screw to ensure secure retention and correct axial positioning.

What does the 0.8 mm corner radius mean for hole quality? A 0.8 mm corner radius offers a stronger cutting edge and smoother engagement with the workpiece, improving edge life and contributing to dimensional stability in drilled holes.

Can this insert handle interrupted cuts? The combination of CVD-coated carbide and the tougher T9225 grade was selected to perform reliably under slightly interrupted cutting and variable engagement conditions common in drilling operations.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.