16mm S12K SDUCL Left-Hand Boring Bar 12mm Shank 125mm Overall, 93° Cutting Angle - Teknik Makina

Take advantage of the combination of rigidity, precise insert compatibility and a compact design for efficient, repeatable turning operations — ideal for setups where tool change speed and stability matter. Order the boring bar directly via Metav Werkzeuge or ask our consultants if needed

Teknik Makina S12K SDUCL boring bar — 12 mm shank, left-hand, for DC-- 0702 inserts

S12K SDUCL boring bar for external turning with SDUC-style indexable inserts, designed for left-hand cutting operations in compact toolholders

• Teknik Makina S12K SDUCL boring bar
• Compatible with DC-- 0702 indexable inserts
• 12 mm shank for compact toolholders
• Left-hand cutting direction
• 125 mm overall length, 16 mm diameter

Greater machining reliability through proven insert compatibility

The toolholder accepts SDUC-style indexable inserts specified for DC-- 0702, providing a straightforward path to repeatable edge location and predictable chip formation. Because the insert pocket is matched to a standard insert form, users benefit from consistent cutting geometry and reduced setup variance. The nominal cutting angle (93°) supports controlled engagement in external turning tasks; when combined with the bar’s secure clamping, this geometry helps to maintain surface quality and dimensional control across production runs.

Stable clamping and compact design for tight setups

A 12 mm shank paired with a 16 mm body diameter and a 125 mm overall length gives a balance between rigidity and access in confined toolpost arrangements. The relatively low mass (0.12 kg) limits the inertia transmitted to smaller lathes and toolholders, while the compact proportions allow installation in multi-tool turrets or holders where space is at a premium. This combination reduces the risk of chatter during light to medium-duty operations and supports faster indexing cycles when insert changes are required.

Clear identification and simple integration into existing tooling

The ISO designation S12K SDUCL identifies shank size and the left-hand orientation, enabling fast selection during tool preparation. The left-hand cutting direction is explicitly indicated, avoiding ambiguity at set-up and ensuring correct mount orientation in left-hand turning applications. Compatibility with DC-- 0702 inserts simplifies procurement and replacement: standardised inserts reduce inventory complexity and shorten machine downtime compared with non-standard tool systems.

Practical application notes for workshop efficiency

Engineered as an external turning holder for SDUC insert types, the bar is best used where small-diameter tooling and repeatable insert positioning are priorities. Its design is suited to operations that demand quick insert changes and predictable cutting behaviour; examples include profile turning, light roughing and finishing where the insert geometry and holder stiffness govern achievable surface finish. The compact profile also supports multi-tool arrangements and is compatible with holders that accept a 12 mm shank, simplifying integration into established tooling arrays.

For reliable left-hand boring solutions from Teknik Makina and swift supply from Metav Werkzeuge, contact Metav Werkzeuge in Emmerich for tailored advice and transparent delivery via info@metav-werkzeuge.com or phone +49 2822 7131930

Technical data

• Article number: K252TM
• Manufacturer: Teknik Makina
• Model designation (ISO): S12K SDUCL
• For indexable inserts: DC-- 0702
• ECLASS: 21180806

Dimensions & weights

• Shank diameter: 12 mm
• Cutting height: 25 mm
• Cutting angle: 93°
• Diameter: 16 mm
• Overall length: 125 mm
• Weight: 0.12 kg

Features & compatibility

• Left-hand cutting direction
• Compatible with SDUC indexable inserts
• SDUC for DC-- indexable inserts (designation)
• ISO designation confirms shank and orientation
• Suitable for compact toolholders

FAQ

Which inserts fit this boring bar?
The holder is designed for DC-- 0702 indexable inserts in the SDUC form; using inserts of this specification ensures proper seating and cutting geometry for the S12K SDUCL boring bar (Teknik Makina, SKU K252TM).

Is the tool for left- or right-hand cutting?
This toolholder is specified for left-hand cutting; the ISO code SDUCL denotes the left-hand orientation and should be mounted accordingly.

What shank size is required for the toolholder?
The bar has a 12 mm shank, so the receiving toolholder must accept a 12 mm mounted shank for correct clamping and alignment.

Can this boring bar be used in compact turrets?
Yes — the compact 125 mm overall length and 12 mm shank are suited to compact toolholders and multi-tool turrets, providing access where longer bars would interfere.

How does the cutting angle affect performance?
The 93° cutting angle provides stable engagement for external turning, promoting controlled chip evacuation and consistent surface results when combined with the correct insert geometry.

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