32mm S25S DDUNL Boring Bar Left Cutting Angle 93mm, 250mm Length - Teknik Makina

Take advantage of a rigid, ISO-designated boring bar that combines stable clamping and straightforward insert compatibility to maintain consistent bore quality; request application advice or place the order through Metav Werkzeuge for reliable supply and fast guidance.

K488TM Boring Bar (S25S DDUNL) – 25 mm shank, left-hand, for DN-- 1104 inserts | Teknik Makina

The K488TM boring bar is a left-hand internal toolholder designed for indexable-insert machining, offering a compact 250 mm overall length for versatile workshop and production use

• 25 mm shank diameter for stable clamping
• Compatible with DN-- 1104 indexable inserts
• Left-hand cutting direction for reverse operations
• 250 mm overall length for standard setups

High rigidity for repeatable bore quality

The S25S DDUNL configuration provides a 25 mm shank and a solid construction that improves stability during internal turning operations. With a 50 mm cutting height and a nominal cutting angle of 93°, the toolholder is engineered to reduce chatter and deliver consistent bore concentricity. The result is a measurable improvement in cycle-to-cycle repeatability, which supports throughput targets and reduces rework in batch production.

Geometry and insert compatibility that simplify setup

Designed for the DN-- 1104 indexable insert family, the holder uses the DDUN pocket geometry to ensure secure siting and repeatable seat position. The left-hand cutting orientation and the ISO designation S25S DDUNL make the assembly straightforward for lathe setups requiring reverse feed direction. Clear mechanical references such as 32 mm outer diameter and the ISO holder code allow quick verification of compatibility with existing toolposts and turret stations.

Practical handling and integration into production

At 250 mm overall length and a weight of 0.956 kg, the bar balances reach and manoeuvrability for typical workshop and CNC turret applications. The compact dimensions support confined bores while maintaining sufficient cutting leverage for medium-duty internal turning. The shank diameter and standardised holder interface reduce the need for additional adaptors, shortening changeover time and helping maintain uptime on multi-shift production lines.

For application-specific recommendations on using the S25S DDUNL K488TM boring bar or to check stock and delivery from Metav Werkzeuge in Emmerich, contact Metav Werkzeuge for expert advice and local supply coordination.

Technical data

• Article number: K488TM
• Manufacturer: Teknik Makina
• ISO designation: S25S DDUNL
• For inserts: DN-- 1104

Specifications

• Shank diameter: 25 mm
• Cutting height: 50 mm
• Weight: 0.956 kg
• Overall length: 250 mm
• Diameter: 32 mm
• Cutting angle: 93°

Features

• Left-hand cutting direction
• Compatible with DN-- 1104 indexable inserts
• ISO holder format S25S DDUNL
• Suited for internal boring and facing operations

FAQ

Which insert series fits this holder?
The K488TM boring bar is specified for DN-- 1104 indexable inserts and uses the DDUN pocket geometry to ensure correct seating and repeatable positioning.

Is the cutting direction left-hand or right-hand?
This toolholder is manufactured for left-hand cutting operations as indicated by the ISO designation S25S DDUNL.

What are the main dimensions to check for turret compatibility?
Key dimensions are the 25 mm shank diameter, 250 mm overall length, and a 32 mm diameter profile; these determine clamping and clearance requirements.

Can the K488TM be used for deep internal bores?
With a 250 mm overall length the bar is suitable for standard internal bores; for deeper applications, evaluate reach versus stability based on the machine setup and material being machined.

What is the ISO designation and why is it important?
The designation S25S DDUNL identifies the shank format and pocket geometry, simplifying compatibility checks with inserts and toolholders and ensuring consistent replacement parts.

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