50mm S40T DDQNL Boring Bar Left-Hand For DN-- 1506 Indexable Inserts, 60mm Cutting Height, 107.5° Cutting Angle - Teknik Makina

Take advantage of the combination of rigid 40 mm shank stability, compatibility with DN--1506 indexable inserts and a 300 mm overall length to achieve reliable left-hand boring operations and consistent surface quality; order directly via Metav Werkzeuge or consult our specialists for application matching.

S40T DDQNL Boring Bar – 40 mm shank, left‑hand cutting (Teknik Makina)

The S40T DDQNL is a left‑hand boring bar designed for internal turning and boring operations using DN--1506 indexable inserts, offering a balance of rigidity and accessibility for medium‑duty setups.

• 40 mm shank for rigid set‑up
• Compatible with DN--1506 inserts
• Left‑hand cutting orientation
• 300 mm overall length for extended reach

Consistent rigidity for stable internal boring

The prominent 40 mm shank delivers structural stiffness that reduces chatter and keeps tool deflection to a minimum during internal operations. With a clearly defined shank diameter and a robust mass of 2.786 kg, the design supports repeatable bore geometry and surface finish. This stability translates into fewer reworks and predictable cycle times when paired with appropriate machine spindle and clamping arrangements.

Efficient indexable system for rapid maintenance

Designed to accept DN--1506 indexable inserts, the bar enables fast insert changes and economical edge replacement. The indexable concept separates cutting edge wear from the toolholder, which reduces downtime and tooling costs over production runs. The 60 mm cutting height provides sufficient insert support for sustained contact, while the 107.5° cutting angle promotes controlled chip flow and consistent engagement in turning passes.

Application fit and orientation explained

Left‑hand cutting orientation is specified for machining operations that require tool approach from the opposite direction; this makes the boring bar suited to specialised set‑ups and reversing operations on certain lathes or multi‑axis machines. The 50 mm diameter at the head and the 300 mm overall length offer a compromise between reach and torsional stiffness, allowing use in deeper bores without excessive vibration when correctly supported.

Integration into production and procurement

The ISO designation S40T DDQNL simplifies compatibility checks with existing toolholding systems and clamping fixtures. For procurement, the clear article number K535TM and manufacturer designation ease inventory and ordering processes. Choosing this tooling through Metav Werkzeuge benefits from a quality filter in Emmerich that supports reliable supply, professional advice and access to a broad range of complementary components for successful integration.

Contact Metav Werkzeuge for tailored tooling recommendations and to arrange supply of the Teknik Makina S40T DDQNL boring bar (SKU K535TM) via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: K535TM
• Manufacturer: Teknik Makina
• ISO designation: S40T DDQNL
• Product type: Boring bar for indexable inserts

Facts

• Shank diameter: 40 mm
• Cutting height: 60 mm
• Weight: 2.786 kg
• Overall length: 300 mm
• Head diameter: 50 mm
• Cutting angle: 107.5°
• Cutting direction: Left
• Compatible insert: DN-- 1506

Special features

• For indexable inserts DN--1506
• Left‑hand cutting orientation
• Robust construction for reduced vibration
• ISO designation for straightforward replacement

FAQ

Which inserts fit this boring bar?
The Teknik Makina S40T DDQNL boring bar is specified for DN--1506 indexable inserts and should be used with inserts matching that designation for correct seating and cutting geometry.

What does left‑hand cutting mean for set‑up?
Left‑hand cutting indicates the cutting action is oriented for tools approaching the workpiece in the left‑hand direction; the S40T DDQNL must be mounted and oriented accordingly to ensure correct machining forces and chip flow.

Is the 40 mm shank suitable for heavy cuts?
A 40 mm shank offers increased rigidity compared with smaller diameters, improving resistance to deflection and making the tool appropriate for more demanding internal operations when paired with a stable machine and correct clamping.

How deep can this boring bar reach effectively?
With a 300 mm overall length and a 50 mm head diameter, the bar provides extended reach for deeper bores while balancing torsional stiffness; final reach capability depends on machine support and bore geometry.

Which SKU and designation identify this product?
This item is listed as K535TM and carries the ISO designation S40T DDQNL, marketed by Teknik Makina as a boring bar for DN--1506 indexable inserts.

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