50mm S40U DDUNL Boring Bar For DN-- 1506 Inserts Left Cut 60mm Cutting Height 350mm Overall Length - Teknik Makina

Benefit from the combination of a left-hand cutting geometry, a 40 mm shaft for stable support and compatibility with DN--1506 indexable inserts for straightforward tooling; order the boring bar directly via Metav Werkzeuge or consult our specialists for application advice.

S40U DDUNL Boring bar — 40 mm shaft, left-hand cut (Teknik Makina)

S40U DDUNL is a left-hand boring bar designed for internal turning with DN--1506 indexable inserts, offering reach and rigidity for professional workshop use

• Left-hand cutting geometry for internal turning
• 40 mm shaft for enhanced stability
• Compatible with DN--1506 indexable inserts
• 350 mm overall length for extended reach

Stable support and predictable cutting performance

The boring bar is engineered to provide stable clamping and consistent results in internal turning operations. The combination of a 40 mm shaft and a mass of 3.336 kg reduces tool deflection and contributes to improved surface finish and repeatability. Where rigidity matters, a larger shaft diameter helps to damp vibrations, which in turn lowers the probability of chatter and extends insert life. This makes the tool suited to repeated precision tasks in small-batch production or workshop environments where predictable turning outcomes are required.

Improved productivity through geometry and reach

A 93° cutting angle paired with a 60 mm cutting height delivers a geometry that balances cutting forces and chip control for indexable insert tooling. The 350 mm overall length provides the reach needed for deeper bores while maintaining sufficient stiffness when used with an appropriate clamping system. As a result, cycle times can be optimised through reliable tool behaviour and fewer re‑set operations, supporting a more efficient machining process with lower overall downtime.

System compatibility and mounting advantages

Marked as S40U DDUNL, the tool is intended for use with DN--1506 inserts and references a clamping holder designation of 15, which informs mounting and holder selection. The left-hand cut orientation suits operations where the spindle or setup requires counterclockwise tool engagement. Clear identification of the interface to inserts simplifies tool setup and inventory management, allowing maintenance of a compact tooling assortment while ensuring interchangeability across compatible holders and indexable inserts.

Workshop handling, supply reliability and integration

Practical handling benefits from a robust design that tolerates routine handling without frequent adjustment. The bar’s dimensions and weight support steady machining when paired with a correctly rated holder and tightening torque. Sourcing through Metav Werkzeuge provides not only rapid dispatch from a European distribution hub but also access to a broad range of complementary tooling and spare inserts, enabling faster integration into existing machining cells. The combined offering aims to reduce procurement complexity while maintaining machining quality standards.

Select the Teknik Makina S40U DDUNL boring bar for stable, left-hand internal turning and rely on Metav Werkzeuge in Emmerich for rapid supply and application matching

Technical data

• Article number: K495TM

• Manufacturer: Teknik Makina

• ISO designation: S40U DDUNL

• Compatible inserts: DN-- 1506

• Shaft diameter: 40 mm

• Cutting height: 60 mm

• Weight: 3.336 kg

• Overall length: 350 mm

• Diameter: 50 mm

• Cutting angle: 93°

• Cutting direction: left

• Clamping holder designation: 15

• Designed for indexable insert use

• Left-hand cutting geometry

• Extended reach for internal turning

FAQ

Which inserts fit this boring bar?
The bar accepts DN--1506 indexable inserts; compatibility is specified for DN--1506 inserts in the product designation.

What is the ISO designation and SKU?
ISO designation: S40U DDUNL. SKU: K495TM (Teknik Makina boring bar).

What are the key dimensions to consider?
Key dimensions: shaft diameter 40 mm, overall length 350 mm, cutting height 60 mm, nominal diameter 50 mm, weight 3.336 kg.

Is the tool suitable for deep internal turning?
The 350 mm overall length offers extended reach for internal turning; suitability for a specific bore depth depends on the machine setup and holder stiffness.

How should the bar be clamped?
Use a holder compatible with the clamping designation 15 and ensure secure, rigid support to maintain stable clamping and minimise deflection.

Manufacturer: Teknik Cutting Tools, Buyukkayacık OSB Mah.422 Nolu Sokak.No:9, Selcuklu/KONYA/TURKEY / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; eMail: info@metav-werkzeuge.com