50mm S40T DDWNR Boring Bar for DN-- 1506 Indexable Inserts, 62.5° Cutting Angle - Teknik Makina

Take advantage of a robust combination of rigidity and insert compatibility to keep machining runs stable and efficient; the S40T DDWNR boring bar reduces vibration and simplifies insert changes. Order directly via Metav Werkzeuge or consult the technical team for application-specific advice.

Boring bar S40T DDWNR — for DN--1506 indexable inserts, Ø50 mm, right-hand (Teknik Makina)

A robust boring bar S40T DDWNR designed for right-hand turning with DN--1506 indexable inserts, suitable for precision internal turning and finishing.

• S40T shank with 40 mm diameter
• Suitable for DN--1506 indexable inserts
• Ø50 mm head diameter
• Right-hand cutting, 62.5° approach angle

Engineered for stability and repeatable results

The S40T DDWNR boring bar is designed to deliver rigidity and reduced chatter through a substantial shank diameter 40 mm and a compact head of Ø50 mm. The increased cross-section improves clamping stability in the tool post, which translates into more consistent surface finish and longer life for the indexable cutting edges. The specified cutting angle 62.5° minimises radial loading during right-hand cuts, helping to maintain form tolerances and reduce tool deflection on longer reaches. This combination is particularly valuable on CNC lathes and turning centres where repeatability and cycle-time stability are priorities.

Flexible insert system for quick changeovers

Compatibility with DN--1506 indexable inserts gives the holder a practical edge in mixed-production environments. The DDWNR geometry supports fast insert replacement and secure indexing, reducing non-productive time and lowering per-part tooling cost. As a right-hand holder, it is configured for standard turning directions while the indexable inserts allow varied edge preparations and grades to be used depending on material and finish requirements. For operations that demand both versatility and predictable chip control, this toolholder form offers a straightforward, cost-effective route to stable turning performance.

Practical dimensions that support everyday workshop use

With an overall length of 300 mm and a cutting height of 50 mm, the bar provides a useful reach without compromising stiffness; the mass of 2.918 kg contributes to vibration damping during heavier cuts. The ISO designation S40T DDWNR ensures standardised clamping and interchangeability across compatible toolposts, simplifying inventory and setup. This toolholder is suitable for medium-duty internal and external turning tasks where balanced tool geometry and proven insert systems deliver better throughput and less rework.

For workshops seeking a robust boring solution, contact Metav Werkzeuge for availability and tailored machining advice — call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• Article number: K466TM
• Manufacturer: Teknik Makina

Data

• Shaft diameter: 40 mm
• Cutting height: 50 mm
• Head diameter: 50 mm
• Overall length: 300 mm
• Weight: 2.918 kg
• Cutting angle: 62.5°
• Cutting direction: right

Special features

• ISO designation: S40T DDWNR
• Suitable for DN--1506 indexable inserts
• Right-hand boring bar
• Designation (English): DDWNR for DN-- 1506 Indexable Inserts
• SKU: K466TM

FAQ

Which inserts fit this toolholder?
The bar accepts DN--1506 indexable inserts; the holder geometry and pocket are designed for secure clamping of these inserts in the DDWNR configuration.

Is the boring bar suitable for external turning as well as internal operations?
Yes, the S40T DDWNR holder is usable for both internal and external turning where its Ø50 mm head and 300 mm overall length provide the necessary reach and stiffness.

What does the ISO code S40T DDWNR indicate?
The ISO designation S40T DDWNR describes the shank size and the holder style; S40T refers to the shank specification while DDWNR defines the insert pocket and orientation suitable for DN--1506 inserts.

How does the 62.5° cutting angle affect machining?
A 62.5° approach angle reduces radial forces and improves chip flow for right-hand operations, which helps maintain dimensional stability and surface quality during turning.

Can this holder be used on CNC lathes?
Yes, the robust shank and standard ISO form make the holder appropriate for CNC lathes and turning centres that accept S40T shanks; the design supports consistent clamping and repeatable results.

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