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Description

Boring Bar MVWNR/L 72.5°, Indexable Insert Holder

The heat-treated MVWNR/L boring bar with a 72.5-degree approach angle is specifically designed for demanding internal turning and complex internal copy turning. As a highly rigid tool holder for narrow VN.. indexable carbide inserts, this boring bar provides the precise accessibility needed to machine delicate internal contours and deep undercuts in series production with process reliability. During copy turning in bores, changing cutting directions and forces frequently cause micro-movements of the indexable carbide insert, leading to dimensional deviations or chatter marks. The robust M-clamping system of this turning tool locks the VNMG insert absolutely rigidly in the insert seat via clamp and pin, while the heat-treated shank effectively absorbs dangerous vibrations deep in the bore. For heavy axial roughing into flat blind holes, the 35-degree cutting edge is physically less suited due to its delicate tip; its absolute strength lies in multi-directional profiling and finishing.

For your manufacturing economy, using this MVWNR/L boring bar means a drastic reduction of scrap on expensive, internally profiled components. The positive-locking insert fixation protects the carbide from thermomechanical peak loads and noticeably extends insert life. At the same time, using common VN inserts reduces your stock costs and minimises setup times at the machine. Stabilise your demanding internal machining and rely on this extremely rigid tool body for dimensionally accurate turning results.

Scope of delivery: 1 MVWNR/L boring bar (without indexable carbide insert) incl. washer, pin, clamp, screw, and wrench.

Note: The image shows the right-hand version (R).

MVWNR boring bar / internal turning tool / turning tool holder – detail view – product image
Properties
Application: For Internal Turning
Approach Angle: 72.5°
Clamping System: M
Internal Cooling: Without Internal Cooling
Material: Steel
Suitable for Inserts: VN..1604..
Type: MVWNR/L
Manufacturer information

Pflichtangaben gemäß GPSR Produktsicherheitsverordnung:

TILL TOOLS GmbH
Am Kebigsgraben 19
97616 Salz
Deutschland
E-Mail: info@tilltools.de

Reviews 11

11 of 11 reviews

Average rating of 4.91 out of 5 stars


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1 - 10 of 11 reviews

29 March 2026 12:17

Review with rating of 5 out of 5 stars

72,5 Grad mit spitzer Zugangslinie

Mit 72,5 Grad zieht sie sauber in komplizierte Innenprofile. Klemmt die Platte gut, keine Mucken beim Schlichten.

26 December 2025 02:10

Review with rating of 5 out of 5 stars

Fairer Kauf Fairer im Budget

Diese Innendrehstange kombiniert Spitzwinkel und Stabilität zum fairen Preis. Schön günstig. In meiner kleinen Werkstatt ist dieses Werkzeug zur kostensicheren Standardlösung geworden, die Ausführung wirkt über mehrere Bestellungen konstant und die Standzeit passt zu meiner Fertigung.

12 October 2025 08:34

Review with rating of 5 out of 5 stars

Ausdrehstahl mit 72 Grad

Der wärmebehandelte Halter nimmt auch schwerere Zustellungen ohne zu Flattern auf. Für Innendrehen bei mir regelmäßig im Einsatz.

31 August 2024 13:18

Review with rating of 5 out of 5 stars

72,5-Grad-Innenhalter solide

Die Kombination aus Spitzwinkel und flacher Stabilität funktioniert innen genauso wie außen gut. Schöner Halter. Preis-Leistung im Vergleich zur Markenvariante angenehm.

16 August 2024 16:09

Review with rating of 5 out of 5 stars

Innenbearbeitung läuft rund

Bin mit der Stange bisher sehr zufrieden. Klemmung sitzt, Lauf ist ruhig und das Werkzeug macht was es soll. Die Oberfläche in den Bohrungen wird gleichmäßig sauber und die Platten halten bei meinen Schnittdaten eine ordentliche Zeit durch.

7 August 2024 10:21

Review with rating of 5 out of 5 stars

Innenstange 72 Grad sitzt satt

Stabil, klemmt gut. Für meinen Einsatz im Feinschnitt ausreichend. Der Plattensitz ist auch nach mehreren Wechseln spielfrei.

20 June 2024 13:20

Review with rating of 5 out of 5 stars

Wärmebehandelter Schaft gut

Die thermische Vorbehandlung merkt man an der Schaftstabilität. Vibrationen werden auch bei filigranen Zustellungen gedämpft, die Klemmung zieht sauber und die Oberfläche kommt gleichmäßig. Für anspruchsvolle Innenarbeiten im Formenbau ideal.

29 April 2024 17:52

Review with rating of 4 out of 5 stars

72,5°-Winkel für Sonderfälle

Spezielle Geometrie, dankbar in manchen Einzelstück-Situationen. Stabil gebaut, Platte sitzt sicher. Rüstwechsel einfach.

25 December 2023 20:39

Review with rating of 5 out of 5 stars

72,5°-Bohrstange für Konturaufgaben

Für bestimmte Konturaufgaben innen eine gute Wahl. Klemmung und Sitz sind sauber, Lauf ruhig. Der steilere Anstellwinkel erlaubt Geometrien, die mit Standardhaltern schwer zu machen sind. Solide Ausführung, bin zufrieden.

12 November 2023 12:19

Review with rating of 5 out of 5 stars

Sehr empfehlenswert

Auspacken, einbauen, läuft. Sauber geschliffen, gleichmäßige Oberfläche. Gerade im Dauereinsatz merkt man, dass die Qualität stimmt. Hatte vorher anderes Werkzeug und bin mit dem hier zufriedener. Mehr braucht es für meinen Einsatz nicht.

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