32mm S25T CKUNR Boring Bar 93° For KNUX 1604 Inserts 25mm Shank 300mm Length - Teknik Makina

Take advantage of a rigid tool design and proven insert compatibility for reliable internal turning results; the combination of a Ø25 mm shaft, 93° cutting angle and compatibility with KNUX 1604 inserts supports consistent bore quality and long tool life. Order the component via Metav Werkzeuge for fast, dependable supply or consult the Metav team for application advice.

Boring bar S25T CKUNR (RK750TM) — 93° right-hand bar for KNUX 1604 inserts by Teknik Makina

A boring bar S25T CKUNR engineered for precise internal turning and heavy-duty steel machining, compatible with KNUX 1604 indexable inserts and optimised for right-hand cutting operations

• 93° cutting angle for secure insert seating
• Ø25 mm shaft for high rigidity
• Compatible with KNUX 1604 inserts
• 300 mm overall length for extended reach

Greater process stability through a rigid design

The bar is built around a Ø25 mm shaft that reduces deflection in deep or small-diameter bores, delivering repeatable concentricity and surface finish. The 93° cutting angle concentrates cutting forces at the insert pocket for secure seating and reduced vibration, which translates into stable machining cycles and fewer reworks. Such mechanical stability is particularly relevant in serial production and quality-sensitive applications where bore tolerance and form are critical.

Fast insert change and clear compatibility for efficient setups

Designed for use with KNUX 1604 indexable inserts, the tool simplifies tool inventory and changeover. The ISO designation S25T CKUNR identifies the bar’s geometry and clamping concept, helping to match holders and toolposts quickly. The right-hand cutting orientation and the specified clamping size support predictable chip flow and confident fixture planning, reducing setup time and boosting machine uptime.

Built for productivity and high material removal in steel work

With an overall length of 300 mm and a cutting height of 52 mm, the bar is intended to balance reach and stiffness for demanding steel operations. The mass and geometry—presented here as 1.4 kg total weight—support steady feed rates without compromising finish. For shops focused on throughput, the tool’s construction enables longer tool life and consistent cycle times, improving process economics over multiple production runs.

Practical application and workshop integration

The design suits internal turning tasks where robust clamping and standard insert formats shorten procurement and maintenance chains. Compatibility with widely used inserts means easier stocking and fewer special components. The bar’s metrics — including the Ø32 mm outer diameter at the cutting head and the ISO designation — aid planners when integrating the tool into existing tool magazines or tool carts, supporting a smoother transition from prototype to series production.

For tailored advice or supply, request Teknik Makina’s S25T CKUNR boring bar through Metav Werkzeuge — Metav’s specialists in Emmerich can confirm fitment, lead times and delivery directly at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: RK750TM
• Manufacturer: Teknik Makina
• ISO designation: S25T CKUNR
• Type: CKUNR for KNUX indexable inserts

Core technical data

• Shaft diameter: 25 mm
• Cutting height: 52 mm
• Overall length: 300 mm
• Diameter: 32 mm
• Weight: 1.4 kg
• Cutting angle: 93°
• Cutting direction: right-hand
• ECLASS: 21180806

Design and compatibility

• Compatible inserts: KNUX 1604
• Clamping holder reference: 16
• Right-hand cutting orientation
• For internal turning and steel machining

FAQ

What inserts are compatible with this boring bar?
The boring bar is specified for KNUX 1604 indexable inserts; the ISO designation S25T CKUNR indicates the matching insert geometry.

Is the bar suitable for deep bores with small diameters?
Yes, the Ø25 mm shaft and the 93° cutting angle are chosen to reduce deflection and support stable machining in extended-reach internal turning.

What is the overall length and mass of the tool?
The tool measures 300 mm overall and weighs 1.4 kg, providing a balance between reach and rigidity for workshop applications.

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; info@metav-werkzeuge.com