20mm Drilling Bar STI for IR/ER Indexable Inserts 16 IR, 180mm Overall Length - Teknik Makina

Take advantage of a compact boring solution that combines a 16 mm shaft for secure clamping, a 180 mm overall length for extended reach and compatibility with standard 16 IR indexable inserts — order directly via Metav Werkzeuge or consult our specialists for application advice and delivery from Emmerich.

STI for IR/ER Indexable Inserts (S16Q STIR) — boring bar with 16 mm shaft, 180 mm length — Teknik Cutting Tools

STI for IR/ER Indexable Inserts is a right-hand boring bar designed for internal turning with indexable inserts; suitable for workshop and light industrial CNC applications.

• ISO designation S16Q STIR
• 16 mm shaft for stable clamping
• Compatible with 16 IR indexable inserts
• 180 mm overall length for extended reach

Consistent cutting performance for repeatable results

The boring bar delivers stable chip removal and predictable tool life through its right-hand cutting orientation and compatibility with standard 16 IR inserts. By accepting widely used insert sizes, the tool reduces setup variations and simplifies inventory management. The result is a measurable improvement in cycle-time consistency and fewer interruptions for tool changes, which supports higher throughput on smaller bores and internal turning operations.

Rigidity and balance to reduce vibration and improve surface finish

A shaft diameter of 16 mm combined with a nominal component diameter of 20 mm gives the tool a compact but rigid profile. This rigidity helps to reduce chatter and improves surface finish during finishing passes. The 40 mm cutting height ensures the insert is positioned for secure clamping and effective cutting engagement, so the machining process benefits from enhanced stability and repeatable part quality.

Straightforward integration with existing clamping systems

The boring bar is designed to fit clamping holders specified as IR16, allowing fast installation into common tool posts and holders. The ISO marking S16Q STIR simplifies identification in toolrooms and allows rapid matching to compatible indexable inserts for internal turning. With a modest weight of 0.286 kg and an overall length of 180 mm, the tool is suitable for operations where reach and balance are important without unnecessary bulk.

Practical applications and handling advice

Ideal for internal machining tasks where indexable inserts provide cost-effective cutting, this boring bar performs well across typical workshop materials when used with appropriate inserts. The combination of standard insert format and compact geometry makes it a practical choice for small- to medium-diameter bores on lathes and turning centres. Regular inspection of insert seating and clamping screws will maintain cutting accuracy and extend service intervals.

For reliable supply and technical guidance on the STI boring bar from Teknik Cutting Tools, contact Metav Werkzeuge — technical advice and next-day delivery options available from our Emmerich location

Technical data

• Article number: K352TM
• ISO designation: S16Q STIR
• Brand: Teknik Makina

Data

• Shaft diameter: 16 mm
• Diameter: 20 mm
• Cutting height: 40 mm
• Overall length: 180 mm
• Weight: 0.286 kg
• Compatible insert size: 16 IR
• Cutting direction: right

Special features

• For STI for IR/ER Indexable Inserts
• Fits clamping holder IR16
• Right-hand cutting orientation
• Suitable for indexable insert internal turning

FAQ

What insert format does this boring bar accept?
The boring bar accepts 16 IR indexable inserts; the tool (STI for IR/ER Indexable Inserts, SKU K352TM) is specified to work with that standard format for quick insert changes.

Is the tool suitable for right-hand turning only?
Yes, the S16Q STIR is configured for right-hand cutting, so it is intended for applications that require that orientation.

Which clamping holder type matches this boring bar?
The bar is compatible with holders designated IR16, ensuring straightforward mounting in holders designed for that interface.

How long is the boring bar and what reach does it provide?
The overall length is 180 mm, providing extended reach for internal machining while retaining a compact, rigid profile.

Can the tool be used on small lathes and turning centres?
Yes, the compact 16 mm shaft and modest weight (0.286 kg) make the tool appropriate for small to medium-size lathes and turning centres when paired with the correct inserts.

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