63mm MTQNL Boring Bar 50mm Shank 350mm Overall Length, Left-Hand 107.5° Cutting Angle - Teknik Makina

Take advantage of a rigid S50U shaft and left-hand cutting orientation to secure consistent internal turning results while keeping set-up time low. Order the component directly through Metav Werkzeuge or contact the technical team for confirmation of machine compatibility.

K540TM boring bar — MTWN for TNMG indexable inserts, left-hand, S50U shaft (Teknik Makina)

A robust K540TM boring bar designed for internal turning with MTWN geometry, compatible with TNMG 1604 indexable inserts and optimised for left-hand cutting applications.

• Left-hand cutting orientation for internal turning
• Compatible with TNMG 1604 indexable inserts
• S50U shaft with 50 mm diameter for rigidity
• 350 mm overall length for deep bore reach

Stability and repeatable results from a rigid shaft

The design centres on a S50U shaft with a 50 mm diameter, delivering increased rigidity that reduces vibration under load. Combined with the substantial mass (approx. 5.121 kg), this stability translates into more consistent chip formation and improved surface finish during internal machining. The 107.5° cutting angle is engineered to balance cutting forces and insert life, which helps to maintain dimensional accuracy across longer cycles.

Reduced changeover and versatile insert handling

Compatibility with TNMG 1604 indexable inserts and the MTWN tool geometry means fewer tool variants in the tooling cabinet and quicker insert changes at the machine. A 65 mm cutting height and 350 mm overall length provide the physical reach and clearance needed for deeper bores without compromising support. This combination of insert standardisation and tool reach reduces downtime and simplifies process planning for small- to medium-batch production.

Practical integration and application-focused details

The device carries the ISO designation S50U MTQNL and is specified for left-hand cutting; it is supplied for use with a clamping holder marked as 16, ensuring compatibility with common mounting systems. The construction is intended for industrial lathe environments where internal turning with indexable inserts is standard practice. For workshops seeking a reliable boring solution from Teknik Makina, the tool’s geometry and dimensional data make it straightforward to assess fitment and to integrate into existing tool cycles without excessive trial runs.

Contact Metav Werkzeuge in Emmerich for precise fitment advice and availability; call +49 2822 7131930 or email info@metav-werkzeuge.com to confirm machine compatibility and secure the K540TM boring bar from local stock

Technical data

• Article number: K540TM
• Manufacturer: Teknik Cutting Tools
• Designation: MTWN for TNMG indexable inserts

Facts

• Shaft diameter: 50 mm
• Diameter: 63 mm
• Cutting height: 65 mm
• Overall length: 350 mm
• Weight: 5.121 kg
• Cutting angle: 107.5°
• eClass: 21180806

Special features

• ISO designation: S50U MTQNL
• Compatible inserts: TNMG 1604
• Cutting direction: left
• Clamping holder designation: 16

FAQ

What inserts does this boring bar accept?
The boring bar is compatible with TNMG 1604 indexable inserts and is configured for MTWN insert geometry to ensure correct seating and cutting performance.

Is the cutting direction left-hand or right-hand?
This tool is specified for left-hand cutting; the left-hand orientation is integrated into the K540TM design and the MTWN geometry.

What are the key dimensions to check for machine fitment?
Key dimensions include a 50 mm shaft diameter, 63 mm outer diameter, 350 mm overall length and 65 mm cutting height; these values help determine clearance and holder compatibility for the K540TM boring bar.

Which ISO designation identifies the shaft and holder type?
The product is marked with the ISO designation S50U MTQNL, indicating the shaft standard and mount style used on this boring bar.

What clamping holder is recommended for this tool?
The tool is listed with a clamping holder designation of 16, which should be matched to the machine’s compatible toolholding system for secure mounting.

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