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Description

Boring Bar MDUNR/L 95°, Indexable Insert Holder

The Boring Bar MDUNR/L 95° takes negative 55° rhombic inserts of the DN family (DNMG, DNMM, DNMA) at 95° approach angle. With M-clamping designed for internal contour work with slim insert shape and deeper plunge depth in the bore.

The M-clamping with top clamp and centring hole secures the insert seat without micro-movement even under varying cutting loads. The boring bar geometry is optimised for reach – deep bores with confined tool seat remain reachable in process. The black oxide and tempered CrMo steel cross-section absorbs high cutting forces without deformation. The right- and left-hand cutting versions enable adaptation to the respective tool revolver geometry of the lathe.

For internal contours with DN insert shape – undercuts, transition radii, slim profiles – the MDUNR/L 95° provides the matching boring bar for clean contour paths.

Scope of delivery: 1 MDUNR/L boring bar (without indexable insert) including shim, pin, clamp, screw, and wrench.

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

MDUNR boring bar / internal turning tool / turning tool holder – detail view – product image
Properties
Application: For Internal Turning
Approach Angle: 95°
Clamping System: M
Internal Cooling: Without Internal Cooling
Material: Steel
Suitable for Inserts: DN..1504.., DN..1506..
Type: MDUNR/L
Manufacturer information

Pflichtangaben gemäß GPSR Produktsicherheitsverordnung:

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

Reviews 10

10 of 10 reviews

Average rating of 5 out of 5 stars


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10 reviews

28 October 2025 13:27

Review with rating of 5 out of 5 stars

MDU-Bohrstange für Innenbearbeitung

Die MDU-Ausführung funktioniert bei mir bei Innendrehen mit DU-Platten in Stahl sehr zuverlässig, Werkzeug bleibt auch bei 50 mm Auskragung ohne Schwingung stabil.

30 September 2025 10:33

Review with rating of 5 out of 5 stars

Gut für tiefe Innendurchmesser

Die Bohrstange zeigt sich auch bei längerem Ausstand stabil, die Klemmung gibt nicht nach. Für meine Bohrungen zwischen 25 und 50 mm die richtige Wahl.

30 July 2025 08:24

Review with rating of 5 out of 5 stars

Innen dreht sauber mit stabiler Klemmung

Läuft ruhig, die Wendeplatte sitzt fest im Halter. Rundlauf im Innendurchmesser ist sauber, keine Vibrationen. Für meine Standardinnenaufgaben eine solide Wahl.

9 January 2025 11:41

Review with rating of 5 out of 5 stars

Bohrung wird rund

Kurze Auskragung, kein Schwingen und saubere Bohrung in C45. Klemmung hält die Platte fest, bin sehr zufrieden.

9 November 2024 13:29

Review with rating of 5 out of 5 stars

Für Innendrehen zuverlässig

Beim Ausdrehen von Kernhülsen für Formwerkzeuge bewährt sich die Bohrstange. Die Auflagefläche ist plan, die Platte sitzt fest und der Schnitt läuft ruhig. Für mittlere Durchmesser passt das gut.

26 September 2024 11:58

Review with rating of 5 out of 5 stars

Innendrehen läuft ordentlich rund

Hab die Bohrstange für Innendrehen in C45 eingesetzt, läuft sauber. Plattenwechsel einfach, Schrauben greifen zuverlässig.

13 June 2024 09:47

Review with rating of 5 out of 5 stars

Stange passt für meine Zwecke

Werkzeug sitzt ordentlich in der Spannhülse. Innendrehen läuft sauber, keine Auffälligkeiten bisher.

16 January 2024 15:09

Review with rating of 5 out of 5 stars

Solide Innenbearbeitung

Bohrstange sitzt gut, der Lauf ist ruhig. Für kurze Aufträge mit Innendrehen sehr brauchbar.

10 December 2023 00:45

Review with rating of 5 out of 5 stars

Bohrstange DU 95 Grad solide

Die Innendrehstange läuft bei uns auf einer Haas ST-20 ordentlich, kein Chattern bei vernünftigem Überhang. Ein verlässlicher Halter. Im direkten Vergleich zum Markenäquivalent knapp auf Augenhöhe.

17 November 2023 21:46

Review with rating of 5 out of 5 stars

Solide Bohrstange

Gute Verarbeitung, ruhiger Lauf bei der Innenbearbeitung. Standzeit der Platte ist auch in Ordnung. Passt.

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