SPGN 090304 BX360 Wendeplatten - Tungaloy

Benefit from the combination of BX360 CBN performance and ISO SPGN geometry for consistent hard-turning results; the compact 0.4 mm corner radius and 90° seat ensure precise finishing and predictable insert seating. Order the SPGN090304-QBN directly via Metav Werkzeuge or consult our technical advisers for process matching.

SPGN 090304 BX360 – Indexable turning insert by Tungaloy, CBN grade for hard turning

The SPGN090304-QBN BX360 is an ISO-format indexable insert designed for turning and finish machining of hardened components, offering a compact square form with an 11° clearance and a 90° seating angle for secure clamping and predictable toolpath control.

• BX360 grade for hardened-steel finishing
• CBN cutting material for extreme wear resistance
• ISO SPGN shape with 90° geometry
• 0.4 mm corner radius for tight profiles

Precision finishing of hardened steels with minimal rework

The insert delivers a targeted benefit for end-of-line turning where surface quality and dimensional control matter. Manufactured with CBN (cubic boron nitride) in the BX360 grade, the cutting edge resists abrasive wear encountered when machining steels of high hardness, enabling reduced re-cutting and fewer touch-ups. The technology supports stable cutting at finishing feeds, so a single-pass approach to achieving tolerance and surface requirements becomes realistic, lowering total machining time.

Longer in-service life and stable process performance

Designed for demanding turning operations, the geometry and grade work together to extend interval lengths between insert changes. The CBN grade tolerates elevated temperatures and abrasive contact, which results in longer tool life and more consistent component runs. For manufacturers, this translates into fewer stoppages for tool exchange and a more predictable production rhythm, improving overall equipment effectiveness and cost per part over volume production.

Simple integration into ISO turning systems and predictable clamping

Compatibility follows ISO standards: the square SPGN format with a 90° seating angle and 11° clearance fits common external holders and boring bars when matched by form, size and thickness. The insert thickness of 3.18 mm and a 0.4 mm corner radius permit accurate profile generation while the QBN chipbreaker controls small, regular chips suitable for finishing. Note that the insert is supplied without a hole and is clamped by the appropriate seat and screw set; check holder matching for secure assembly. For application advice or to confirm holder compatibility, Metav Werkzeuge provides technical assistance at info@metav-werkzeuge.com or +49 2822 7131930.

Contact Metav Werkzeuge today to specify Tungaloy BX360 inserts for hardened-steel turning and receive tailored recommendations from our machining specialists

Technical data

• Article number: 6807050
• Manufacturer SKU: TUN6807050
• Supplier SKU: 6807050-Tungaloy
• Designation: SPGN090304-QBN
• Item name: SPGN090304-QBN BX360 Tungaloy insert

Core specifications

• Size designation: 09
• Thickness: 3.18 mm
• Clearance angle: 11°
• Seating angle: 90°
• Corner radius: 0.4 mm

Materials and features

• Cutting material: CBN (cubic boron nitride)
• Substrate: cemented carbide
• Grade: BX360
• Chipbreaker: QBN
• Shape: square
• Hole: without hole
• Typical application: Turning, external and internal finishing
• Model series: ISO turning indexable inserts
• Intended for: hardened steels and, depending on variant, cast iron

FAQ

Which materials are best suited for this insert?
The BX360 CBN grade is intended primarily for hardened steels; depending on the variant, the insert can also be suitable for certain cast-iron finishing operations. The SPGN geometry supports typical hard-turning tasks.

How does the QBN chipbreaker affect performance?
The QBN chipbreaker is configured for finishing cuts, producing controlled, short chips and promoting consistent surface quality when used with appropriate feeds and speeds.

What holder compatibility should be checked before ordering?
Verify holder form, seating angle, clearance angle, tolerance class, clamping method and insert thickness. The SPGN 90° seating and 3.18 mm thickness require a matching ISO-compatible external holder or boring bar.

Is the insert through-hole required for clamping?
This variant is supplied without a hole and is designed for pocket clamping with the appropriate screw and clamping set; ensure the chosen holder supports a holeless SPGN insert.

How can tool life be maximised with this grade?
Use stable setups, optimise cutting parameters for finishing, and ensure effective chip evacuation. The BX360 CBN grade is engineered for wear resistance, which supports longer intervals between changes under suitable conditions.

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.