63mm S50U MTUNR Boring Bar MTUN For TNMG Indexable Inserts, 93° Cutting Angle, 350mm Overall Length - Teknik Makina

Take advantage of the combination of robust clamping, proven compatibility with TNMG 1604 inserts and extended reach for reliable turning cycles — order directly via Metav Werkzeuge or ask our consultants for tailored advice.

S50U MTUNR Boring Bar — 50 mm Shank, 350 mm Overall Length by Teknik Makina

The S50U MTUNR is a right-hand boring bar designed for external turning with MTUN seat for TNMG indexable inserts, suited to workshop and production turning tasks.

• 50 mm shank for stable clamping
• Compatible with TNMG 1604 inserts
• 350 mm overall length for extended reach

Stable clamping for precise, repeatable cuts

The substantial 50 mm shank and a body diameter of 63 mm combine to provide a rigid mounting interface, which reduces vibration and improves surface finish during external turning. A heavier tool body (5.15 kg) increases inertial stability for interrupted cuts and long overhangs; this contributes to longer insert life and fewer rework cycles. The result is a measurable improvement in part consistency and process reliability for production runs.

Fast insert changes and predictable chip control

Designed around the MTUN for TNMG seat, the tool accepts TNMG 1604 indexable inserts, enabling quick tool changes and consistent geometry at the cutting edge. The specified cutting height of 65 mm and a 93° cutting angle ensure the insert sits at the intended centre-line and offers predictable engagement with the workpiece. These attributes lower set-up times and make process planning more straightforward, since insert choice and clamping are standardised across many turning operations.

Extended reach while maintaining workshop efficiency

With an overall length of 350 mm, the bar provides access to deeper bores or extended overhangs without sacrificing stability when clamped correctly. The design is compatible with clamping holders of size 16, allowing integration into existing tool posts and turrets. The ISO designation S50U MTUNR reflects a standardised tool form that simplifies inventory and replacement planning for maintenance teams and production buyers, helping to centralise tooling supplies and reduce downtime.

For precision external turning with proven insert compatibility, contact Metav Werkzeuge to discuss Teknik Makina’s S50U MTUNR boring bar (SKU K448TM) and receive personalised guidance — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: K448TM
• Manufacturer: Teknik Cutting Tools
• ISO designation: S50U MTUNR
• Eclass: 21180806

Dimensions & core data

• Shank diameter: 50 mm
• Overall length: 350 mm
• Body diameter: 63 mm
• Cutting height: 65 mm
• Weight: 5.15 kg
• Cutting angle: 93°
• Clamping holder size: 16
• Suitable inserts: TNMG 1604
• Cutting direction: right

Features & applications

• MTUN seat for TNMG indexable inserts
• Right-hand boring bar for external turning
• Quick insert replacement for reduced set-up time
• Suits standard tool posts and turret adapters
• Robust construction for production and workshop use

FAQ

Which inserts fit this boring bar?
The S50U MTUNR accepts TNMG 1604 indexable inserts via the MTUN seat; this pairing is specified for secure clamping and repeatable cutting geometry.

Is the bar right-hand or left-hand?
This boring bar is configured for right-hand cutting, intended for standard clockwise tool movement when viewed from the spindle.

What shank diameter is required for mounting?
A 50 mm shank is specified; the bar is supplied in the S50U format to fit compatible holders and adapters.

Can the S50U MTUNR be used for deep bores?
With an overall length of 350 mm, the bar provides extended reach for deeper turning tasks, though stable clamping and correct overhang management are essential for optimal results.

How does the cutting angle affect performance?
The 93° cutting angle positions the insert for robust cutting engagement and predictable chip flow; this contributes to consistent material removal and tool life.

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