32mm Boring Bar MTWN for TNMG Indexable Inserts Left 50mm Cutting Height 250mm Overall Length - Teknik Makina

Combine robust clamping and clear insert compatibility with precise geometry to maintain consistent bore quality; the left-hand design and 32 mm diameter ensure dependable chip flow and stable runs. Order the MTWN boring bar directly via Metav Werkzeuge or consult our technical advisers for selection and supply.

Boring bar MTWN for TNMG indexable inserts (K537TM) — Teknik Makina, 32 mm, left-hand

The Boring bar MTWN for TNMG indexable inserts is a left-hand, ISO S25S MTQNL-design tool for machining with TNMG 1604 indexable inserts, optimised for stable internal turning and secure clamping in standard toolholders.

• Left-hand cutting direction
• 32 mm outer diameter
• 25 mm shank diameter
• Compatible with TNMG 1604 inserts

Consistent bore quality through defined geometry

The bar’s controlled geometry and 107.5° cutting angle deliver a repeatable cutting edge approach, which reduces vibration and improves roundness on finished bores. With an overall length of 250 mm and a clearly specified cutting height of 50 mm, the design balances accessibility with rigidity. This results in fewer reworks and a predictable cycle time when used in conventional lathe setups, making the tool suitable for shops that demand consistent tolerances.

Secure clamping and tool-holder fit for stable performance

A 25 mm shank diameter and a clamping holder designation of 16 provide a precise fit in common toolholders, reducing runout and increasing the life of the indexable insert. The ISO designation S25S MTQNL describes the connection and shaft form, ensuring compatibility with modular holders. The modest mass of 0.942 kg contributes to dynamic stability without adding unnecessary load to the spindle; the result is improved surface finish and extended insert life.

Optimised for TNMG 1604 inserts and efficient chip control

Designed specifically for TNMG 1604 plates, the bar mates with common insert grades to cover a wide range of steels and cast materials. The left-hand orientation alters the chip evacuation path compared with right-hand tools and is often chosen for particular turning setups or when machining left-hand features. Combined with the tool’s cutting geometry, the arrangement supports consistent chip breaking and evacuation, which helps maintain process reliability in medium-duty turning operations.

Supply reliability and practical support from Metav

Delivered under the Teknik Cutting Tools product line and stocked through Metav Werkzeuge, the boring bar benefits from a European distribution hub in Emmerich that serves as a quality filter and logistics centre. Metav’s extended product range and experience reduce sourcing complexity for workshops and small manufacturers, while technical advisers are available to confirm compatibility with existing holders and machining strategies. This supply chain transparency supports uninterrupted production planning and replenishment.

For procurement or tailored machining advice on Teknik Cutting Tools’ MTWN boring bar (SKU K537TM) contact Metav Werkzeuge in Emmerich: phone +49 2822 7131930 or email info@metav-werkzeuge.com to discuss suitability and next steps.

Technical data

• SKU: K537TM
• Manufacturer: Teknik Makina
• Brand: Teknik Cutting Tools
• ISO designation: S25S MTQNL
• For inserts: TNMG 1604

Facts

• Diameter: 32 mm
• Shank diameter: 25 mm
• Cutting height: 50 mm
• Overall length: 250 mm
• Weight: 0.942 kg
• Cutting angle: 107.5°

Special features

• Left-hand cutting direction
• Clamping holder size: 16
• Suitable for indexable inserts
• Designed for internal turning operations

FAQ

Which inserts fit this boring bar?
The bar is specified for TNMG 1604 indexable inserts; use insert grades suited to the workpiece material and the intended surface finish.

Is the cutting direction left-hand and what does that mean in practice?
Yes — the tool has a left-hand cutting orientation, which changes the chip flow and approach direction; this is relevant when arranging toolpaths or matching lathe spindle/fixture layouts.

What are the key dimensions to check for tool-holder compatibility?
Check 32 mm outer diameter, 25 mm shank diameter and the ISO designation S25S MTQNL to confirm fit with existing holders.

Who supplies and guarantees product availability in Europe?
Teknik Cutting Tools’ MTWN boring bars (SKU K537TM) are distributed via Metav Werkzeuge, which maintains stock and offers logistical support for European customers.

Manufacturer: Teknik Cutting Tools, Buyukkayacık OSB Mah.422 Nolu Sokak.No:9, Selcuklu/KONYA/TURKEY / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; +49 2822 7131930; eMail: info@metav-werkzeuge.com