32mm Drill Bar S25S DDUNR Right-Hand, 50mm Cutting Height, 250mm Overall Length - Teknik Makina

Combine right-hand cutting reliability with a 25 mm shank and a 50 mm effective cutting height for stable boring results; procure the tool via Metav Werkzeuge or consult our specialists for application advice.

S25S DDUNR boring bar — 25 mm shank, 250 mm overall length (Teknik Makina)

The S25S DDUNR boring bar is a right-hand, indexable-insert tool designed for precision internal boring on CNC lathes using DN--1506 inserts

• Right-hand cutting direction for standard setups
• Compatible with DN--1506 indexable inserts
• 50 mm effective cutting height
• 250 mm overall length, robust 0.95 kg construction

Consistent machining through compatible insert geometry

The tool is engineered for repeatable results by matching common indexable insert sizes; compatibility with DN--1506 inserts reduces setup complexity and minimises inventory variety. Right-hand cutting geometry ensures predictable chip flow and tooling direction on standard lathe configurations, while the ISO designation S25S DDUNR denotes the toolholder interface and clamping form. For workshops aiming to streamline tool changeovers, this matching of holder and insert delivers measurable reductions in downtime and simpler ordering logic.

Stable cuts from a compact, stiff design

A 25 mm shank diameter combined with a 50 mm cutting height and a 250 mm overall length provides a balance of reach and rigidity that helps reduce vibration and improve surface finish. The nominal diameter of 32 mm and a 93° cutting angle are chosen to improve approach clearance in confined bores while maintaining support at the cutting zone. The assembly mass of 0.95 kg contributes to dampening without excessive inertia, making the bar suitable for medium-duty internal machining where repeatable concentricity and tool life matter.

Practical productivity gains at the machine

Using a standard indexable system brings clear economic benefits: fewer regrinds, easier insert changes and consistent cutting edges that stabilise cycle times. The modular nature of the holder and insert concept supports quick adaptation between roughing and finishing grades of insert, so process engineers can optimise metal removal rates without modifying the toolpost. Combined with a predictable right-hand orientation and industry-standard clamping, the tool supports efficient production runs and straightforward tool management within a larger tooling strategy.

Contact Metav Werkzeuge for tailored advice on integrating Teknik Makina boring bars into existing CNC setups and to arrange prompt supply from our Emmerich centre

Technical Data

• Article number: K410TM
• ISO designation: S25S DDUNR
• Compatible inserts: DN-- 1506
• Cutting direction: right-hand
• Brand: Teknik Makina

Data

• Shank diameter: 25 mm
• Cutting height: 50 mm
• Overall length: 250 mm
• Diameter: 32 mm
• Cutting angle: 93°
• Weight: 0.95 kg

Special features

• For DN-- 1506 indexable inserts
• Right-hand cutting
• ISO toolholder interface
• Robust, balanced mass for stability

FAQ

Which inserts fit this boring bar?
The S25S DDUNR is designed for DN--1506 indexable inserts; Teknik Makina specified this compatibility to simplify insert selection and ensure correct seating and chip control.

What are the key dimensions to check when mounting?
Check the shank diameter 25 mm and overall length 250 mm to verify holder and turret clearance; the 50 mm cutting height and 32 mm nominal diameter are relevant for bore access and support.

Is the cutting direction right- or left-hand?
This boring bar is supplied with a right-hand cutting direction, which is suitable for standard lathe orientations and typical spindle/feed arrangements.

How does the 93° cutting angle affect machining?
A 93° approach offers improved clearance at the bore entrance and supports stable cutting forces, helping to preserve insert life and enhance surface finish in internal operations.

Can this tool be used for both roughing and finishing?
Yes — by selecting appropriate grades and geometries of DN--1506 inserts, the holder supports both higher removal-rate roughing and low-vibration finishing passes.

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