50mm S40V CKUNR Drilling Bar For KNUX 1604 Indexable Inserts, Right-Hand - Teknik Makina

Take advantage of a rigid 40 mm shank and a 400 mm overall length to achieve stable internal turning with indexable inserts; precision geometry and robust mass reduce vibration and improve surface finish. Order directly via Metav Werkzeuge or consult our specialists if additional technical guidance is required.

Boring Bar S40V CKUNR for KNUX 1604 Indexable Inserts — 40 mm shank, 400 mm overall (Teknik Makina)

A robust Boring Bar S40V CKUNR designed for internal turning with KNUX 1604 indexable inserts, optimised for right-hand cutting and reliable clamping

• 40 mm shank for stable mounting
• 400 mm overall length for deep bores
• Compatible with KNUX 1604 indexable inserts
• Right-hand cutting with 93° cutting angle

Higher productivity through rigidity and vibration damping

The solid 40 mm shank and substantial body diameter contribute directly to stability during internal turning, which reduces chatter and allows for more consistent chip formation. With a 50 mm diameter and a mass of 3.999 kg, the toolholder provides inertial damping that supports higher metal‑removal rates while maintaining part geometry. For workshops aiming to shorten cycle times, the mechanical steadiness of this boring bar translates into fewer reworks and better first‑pass yields, so machining programmes can run at sensible feeds and depths without sacrificing surface integrity.

Proven insert compatibility for predictable performance

Designed around the KNUX 1604 insert family and the CKUNR holder geometry, the tool enables quick, repeatable insert changes and consistent cutting conditions. The cutting height 55 mm and 93° cutting angle are engineered to ensure correct rake and clearance for standard KNUX inserts, so chip flow and heat distribution remain controlled during right‑hand operations. For teams less familiar with insert geometries, this means straightforward tooling choices: standard KNUX 1604 inserts fit the assembly and deliver predictable wear patterns, simplifying tooling inventories and replacement planning.

Reach and mounting that suit deep internal operations

A 400 mm overall length provides the reach needed for through‑bore and shoulder operations in components with extended bores, while the documented clamping holder size 16 gives clear guidance for compatible toolholders and set‑ups. The combination of shank dimensions and clamping interface reduces overhang‑related deflection; in practice this reduces the need for conservative feeds and allows a focus on optimising cutting data. Clear numeric specifications make fixturing decisions faster and support straightforward integration into CNC tool libraries for repeatable set‑up.

Durability, identification and supply reliability

The ISO designation S40V CKUNR identifies the bar precisely for procurement and machine set‑up, simplifying replacement and stock management. Constructed for workshop durability, the assembly’s dimensions and balanced mass support long service intervals when combined with correct clamping torque and routine inspection. Sourcing through established channels ensures traceability and consistent quality control: Metav’s distribution provides a centralised supply chain and documentation for procurement teams that require reliable, repeatable purchases.

For robust internal turning choose Teknik Makina’s precision boring bar — contact Metav Werkzeuge for application guidance and reliable supply from Emmerich at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• SKU: RK756TM
• Manufacturer: Teknik Makina
• Article designation (ISO): S40V CKUNR
• Product: CKUNR for KNUX Indexable Inserts

Core technical data

• Shank diameter: 40 mm
• Cutting height: 55 mm
• Overall length: 400 mm
• Diameter: 50 mm
• Weight: 3.999 kg
• Cutting angle: 93°
• Cutting direction: right
• Clamping holder size: 16

Special features

• Compatible with KNUX 1604 indexable inserts
• ISO designation S40V CKUNR
• Right‑hand tool for internal turning

FAQ

What insert type fits this boring bar?
The bar is intended for KNUX 1604 indexable inserts; the CKUNR geometry provides correct seating and clamping for that insert family in Teknik Makina’s S40V CKUNR configuration (SKU RK756TM).

Is this tool suitable for left‑hand operations?
No — the boring bar is configured for right‑hand cutting with a 93° cutting angle, so it is intended for right‑hand internal turning applications.

Which dimensions are relevant for setting up the tool?
Key dimensions are 40 mm shank diameter, 400 mm overall length, 50 mm body diameter and a cutting height of 55 mm; weight is 3.999 kg — these values guide clamping, overhang and balance decisions.

What does the ISO designation S40V CKUNR indicate?
The ISO code S40V CKUNR identifies the shank size and the CKUNR holder geometry, providing an exact reference for procurement, tool lists and compatibility checks.

For which operations is this bar primarily designed?
This tool is designed for internal turning and boring using KNUX 1604 indexable inserts, offering reach for deeper bores and the rigidity required for consistent finishing and dimensional control.

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