58mm SIR S50U Drill Bar For 27 IR Indexable Inserts, Right-Hand 75mm Cutting Height, 50mm Shank - Teknik Makina

Take advantage of the combination of robust SIR S50U construction, high radial stiffness from a 50 mm shank, and precise compatibility with IR27 indexable inserts to maintain steady machining cycles and predictable tool life; order the tool directly via Metav Werkzeuge or contact our consultants for application advice.

Boring bar K347-2TM — SIR S50U external turning bar, Ø58 mm, 350 mm

A Boring bar K347-2TM engineered for external turning with indexable IR inserts, designed to deliver rigidity and repeatable results in industrial production environments

• SIR S50U design for IR27 indexable inserts
• Ø58 mm cutting diameter for external turning
• 50 mm shank for high radial stiffness
• 350 mm overall length, right‑hand orientation

Rigidity and repeatability for heavy-duty turning

The SIR S50U configuration provides a stable tool body that reduces chatter and deflection during external turning operations. With a 50 mm shank and a nominal cutting diameter of Ø58 mm, the bar is dimensioned to resist bending moments that commonly degrade surface finish and dimensional accuracy. This construction converts directly into predictable tolerances and less rework, which is particularly valuable for medium- to large-batch production where cycle-time consistency matters. The design for IR27 indexable inserts enables quick insert changes while maintaining the clamping integrity necessary for repeatable results.

Geometry aligned to right‑hand cutting for efficient chip control

Designed for right‑hand cutting, the bar positions the insert and clamp plate (TA065) for reliable chip evacuation and stable cutting angles. The specified cutting height of 75 mm ensures correct insert seating and positive engagement with the workpiece; this reduced risk of misalignment preserves the insert edge geometry and prolongs component life. The combination of geometry and clamping method supports efficient metal removal rates and lowers the risk of unexpected tool failure during continuous shifts, which contributes to overall productivity improvements on the shop floor.

Practical handling, maintenance and integration into toolsets

Assembly and maintenance are straightforward: clamping is secured with an M5x18 Torx screw (Torx key T20) and the holder designation IR27 supports common industrial insert packages, simplifying spare-part logistics. The bar’s 350 mm overall length and an item weight of 5.177 kg balance accessibility with mass that helps damp vibrations in demanding cuts. The ISO marking SIR S50U facilitates catalogue matching and tool management in ERP systems. When integrated into a standard tool carousel or turret, the bar’s interface and dimensions allow rapid setup and predictable offsets, reducing machine idle time between jobs.

For production-critical turning with Teknik Cutting Tools’ SIR S50U concept, request a compatibility review from Metav Werkzeuge — Metav’s specialists in Emmerich can advise on insert grades, clamping torque and setup to match specific workpiece materials and cycle requirements.

Technical data

• Article number: K347-2TM
• Name: Boring bar (SIR S50U)
• Type: SIR for IR indexable inserts
• Manufacturer: Teknik Makina

Facts

• Diameter: 58 mm
• Shank diameter: 50 mm
• Overall length: 350 mm
• Cutting height: 75 mm
• Weight: 5.177 kg
• Direction: Right-handed
• Compatible inserts: 27 IR
• Torx key: T20
• Torx screw: M5x18
• Clamp plate: TA065

Special features

• ISO designation: SIR S50U
• Clamping designation: IR27
• Designed for indexable inserts
• Right-hand cutting orientation
• Quick insert replacement capability

FAQ

What insert type fits this boring bar? The boring bar accepts IR27 indexable inserts; the tool is specified for IR27 clamping and the clamp plate TA065.

Is the bar suitable for heavy cuts and high radial loads? The SIR S50U geometry with a 50 mm shank and Ø58 mm body offers elevated radial stiffness suited to heavier external turning, reducing deflection under load.

How is the clamping secured and which tools are required? Clamping is secured by an M5x18 Torx screw, tightened with a T20 Torx key for reliable insert retention.

Can the bar be used in automatic turret tool systems? Yes; the 350 mm overall length and standard ISO designation facilitate integration into common turret and tool post systems when offsets are set accordingly.

What is the weight and does it affect handling? The item weight is 5.177 kg; the mass helps damp vibration but should be considered for manual handling and balance during rapid tool changes.

Manufacturer / Responsible: 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