40mm Boring Bar for CNMG 1204 Indexable Inserts L350mm, Right-Hand 95° Cut Angle - Teknik Makina

Benefit from high rigidity and precise insert compatibility to keep machining stable and repeatable. The robust 40 mm body and ISO S32U shank deliver improved vibration damping and consistent bore quality. Order the boring bar directly via Metav Werkzeuge or contact our consultants for application advice.

Boring bar S32U – 40 mm for CNMG 1204 indexable inserts (Teknik Makina)

Boring bar S32U designed for right-hand turning with CNMG 1204 indexable inserts, ideal for stable internal and external boring in industrial workshops.

• Solid 40 mm diameter body
• Compatible with CNMG 1204 inserts
• Right-hand cutting, 95° cutting angle
• Shank Ø32 mm, L 350 mm

Stable, vibration‑resistant machining for consistent bores

The 40 mm diameter body paired with the ISO S32U shank increases torsional stiffness and reduces chatter during interrupted cuts. This rigidity translates into repeatable bore diameters and longer insert life, which lowers tooling costs per part and improves first-pass yield. The design focuses on mechanical stability rather than compensating for vibrations through downstream rework, supporting efficient batch production and tight tolerance control.

Minimised setup and faster tool changes with standard inserts

Compatibility with CNMG 1204 indexable inserts allows rapid re-grading between roughing and finishing grades without changing the holder. Using widely available inserts reduces inventory complexity and shortens downtime during tool replacement. The clamping arrangement is engineered to secure the insert reliably, contributing to consistent cutting geometry and predictable process parameters.

Geometry tuned for access and controlled chip flow

A 95° cutting angle and right-hand cutting orientation provide favourable cutting forces and improved tool clearance in common boring applications. The angle supports efficient chip formation and evacuation in through-hole and shoulder boring, reducing the risk of recutting chips and surface blemishes. The result is a smoother bore wall and less need for secondary finishing.

Secure clamping and maintenance-friendly fasteners

The clamping head benefits from a 22 mm width that balances insert support and accessibility. Fastening uses an M6x27 clamp screw paired with an Allen key (3) for straightforward tightening and repeatable torque setting during maintenance. This straightforward fastener layout simplifies routine checks and reduces time spent on service tasks at the machine.

Optimised dimensions for standard toolposts and machines

A shank diameter of Ø32 mm and overall length of 350 mm make the tooling suitable for many conventional lathes and CNC turning centres while preserving stiffness at reach. The reasonable mass (2.125 kg) ensures stable dynamics without excessive loading of the turret, aiding balance and predictable axis behaviour during plunge or deep internal boring cycles.

Production advantages across workshop applications

The combination of a stiff tool body, standard insert use and simple clamping design delivers tangible production benefits: improved surface finish, longer insert life, and reduced changeover time. The boring bar is suited to serial production where process stability and tool repeatability directly affect throughput and quality metrics, making it a pragmatic choice for precision-oriented metalworking environments.

Choose Teknik Makina's S32U boring bar for reliable boring operations and contact Metav Werkzeuge for tailored application advice and prompt supply from Emmerich.

Technical data

• SKU: K402-1TM
• Label: 40mm Bohrstange CNMG 1204 L350mm
• Manufacturer: Teknik Makina
• EClass: 21180806

Facts

• Diameter: 40 mm
• Overall length: 350 mm
• Shank diameter: 32 mm
• Cutting height: 60 mm
• Clamping head width: 22 mm
• Weight: 2.125 kg
• Cutting angle: 95°
• Direction: right-hand
• Allen key: 3
• Clamp screw: M6x27
• ISO designation: S32U

Special features

• For CNMG 1204 indexable inserts
• Product type: Boring bar
• Right-hand cut
• Clamping head width 22 mm
• Allen key: 3
• Clamp screw: M6x27

FAQ

Which inserts fit this boring bar? The boring bar S32U is compatible with CNMG 1204 indexable inserts and accepts standard grades for roughing and finishing.

Is the tool suitable for deep boring applications? With a 40 mm body and Ø32 mm shank, the bar provides increased stiffness for extended reach operations while maintaining stable cutting behaviour.

What fasteners are supplied with the tool? Clamping uses an M6x27 screw and an Allen key (3) is specified for tightening and maintenance tasks on the clamping head.

Can the bar be mounted in common turning turrets? The Ø32 mm shank and 350 mm length are compatible with many standard turret toolposts and CNC turning systems that accept round shanks.

What benefits does the 95° cutting angle provide? The 95° geometry improves tool clearance and chip control in shoulder and internal boring, contributing to better surface quality and reduced recutting of chips.

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