30mm SIR S25R Boring Bar For 22 IR Indexable Inserts, 25mm Shank Diameter 45mm Cutting Height - Teknik Makina

Take advantage of a compact combination of rigidity and insert compatibility for precise internal turning: the SIR S25R offers a 25 mm shank with a 45 mm cutting height and secure M4x15 clamping. Order the boring bar directly via Metav Werkzeuge or consult our advisors for integration into existing toolholding systems.

SIR S25R Boring Bar (SIR for IR Indexable Inserts) — 25 mm shank, 45 mm cutting height | Teknik Makina

The SIR S25R is a right-hand boring bar designed for use with IR22 indexable inserts, intended for precision internal turning and boring operations in CNC and turning centres.

• Right-hand cutting direction
• 25 mm shank diameter for stable clamping
• Compatible with 22 IR indexable inserts
• 45 mm cutting height for extended engagement

Stable performance for internal turning operations

The tool body is engineered to deliver high rigidity during internal machining, which reduces chatter and improves surface finish on bores. The combination of a 25 mm shank and a 200 mm overall length produces a controlled balance between reach and stiffness, making the bar suitable for medium-depth boring where repeatable accuracy is required. Reduced vibration is achieved through a compact profile, and the low mass of 0.76 kg contributes to easier tool changes without compromising stability.

Secure clamping and simple insert handling

A robust clamping interface is provided for IR22 inserts, using an M4x15 Torx screw (Torx key T15) to ensure consistent seat pressure. Indexable inserts are fixed mechanically so that the cutting edge position is repeatable after each index, which means less downtime for edge changes and a predictable dimensional outcome. The concept of an indexable insert—an independently replaceable cutting tip—allows costs to be concentrated on consumable tips rather than the entire tool, improving cost-efficiency in serial production.

Optimised for right-hand cutting in CNC workflows

Designed for right-hand cutting, this bar integrates smoothly into standard turning and boring programmes. The nominal diameter of 30 mm and the 45 mm cutting height permit stable chip evacuation when paired with appropriate inserts and cutting parameters. Because programming and tool offsets are simplified by standardised geometries, setup times at the machine are reduced and throughput can be increased while maintaining the required tolerances.

Practical compatibility with holders and accessories

The shank and seat geometry are matched to common clamping systems: compatible clamp holder designation IR22, support U-plate TA063 and shim BSP010 are indicated for assembly. These parts work together to maintain positional accuracy and to facilitate quick replacement cycles. Where toolholders are standardised on the shopfloor, this modular approach allows the boring bar to be swapped in without extensive rework of fixtures.

Reliability, sourcing and supply for production continuity

Supplied by Teknik Makina and distributed via Metav Werkzeuge, the tool benefits from a secure logistical chain that aims to keep workshop downtime to a minimum. The compact design and familiar fastenings (Torx T15, M4x15) mean routine maintenance and consumable replenishment are straightforward, supporting ongoing production demands and predictable tool costs.

Contact Metav Werkzeuge for specification matching and procurement from Emmerich—email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss integration and lead times

Technical data

• SKU: K343TM
• ISO designation: SIR S25R
• Article description: SIR for IR Indexable Inserts
• Brand: Teknik Makina

Facts

• Shank diameter: 25 mm
• Cutting height: 45 mm
• Overall length: 200 mm
• Diameter: 30 mm
• Weight: 0.76 kg
• Cutting direction: right
• ECLASS: 21180806

Special features

• For indexable inserts: 22 IR
• Clamping screw: M4x15 (Torx key T15)
• Compatible clamp holder: IR22
• U-plate: TA063
• Shim: BSP010

FAQ

What type of inserts does this boring bar accept? The SIR S25R is designed for IR22 indexable inserts; insert geometry must match the IR22 seat for correct clamping and alignment.

Is the cutting direction right-hand or left-hand? The bar is specified for right-hand cutting, suitable for standard right-hand boring and turning cycles.

What are the key dimensions for setup and programming? Use a shank diameter of 25 mm, an overall length of 200 mm and a cutting height of 45 mm when entering tool offsets and reach calculations for the machine.

Which clamping components are recommended for assembly? Recommended parts include clamp holder IR22, U-plate TA063 and shim BSP010, secured with the supplied M4x15 Torx screw (Torx T15) for reliable seating.

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