16mm A12K SDQCL Left-Hand Drilling Bar With Internal Coolant, 125mm Overall - Teknik Makina

The combination of robust left‑hand cutting geometry, internal coolant and compatibility with DC-- 0702 indexable inserts delivers reliable chip control and extended insert life; secure supply and expert advice are available via Metav Werkzeuge for seamless integration into production.

A12K SDQCL (KA272TM) Boring Bar – Left‑hand, internal‑coolant tool by Teknik Makina

The A12K SDQCL boring bar is a left‑hand turning tool designed for use with DC-- 0702 indexable inserts, supplying coolant through the bar for optimised chip evacuation in CNC turning and finishing operations

• Left‑hand cutting orientation
• Internal coolant feed for chip control
• Compatible with DC-- 0702 indexable inserts
• 12 mm shank, 125 mm overall length

Improved throughput for left‑hand turning operations

The left‑hand configuration and precise 107.5° cutting angle make this boring bar particularly effective where reverse or mirrored turning paths are required. By combining this geometry with a solid 12 mm shank, the tool maintains cutting stability during interrupted cuts and finishing passes. The result is reduced vibration and a consistent surface finish, which supports higher machine feed rates and fewer reworks. These technical choices translate directly into measurable efficiency gains on production runs that need reliable left‑hand tool performance.

Coolant‑fed design for longer insert life and cleaner chips

With internal coolant supply, the boring bar channels cutting fluid directly to the cutting zone. This design improves cooling efficiency at the cutting edge and assists chip evacuation when using the DC-- 0702 indexable inserts. The consequence is lower cutting temperatures and diminished flank wear, extending the service intervals for inserts and reducing tooling costs per part. For shops that prioritise cycle stability and predictable consumable usage, the coolant‑fed approach supports continuous, trouble‑free operation on both roughing and finishing cycles.

Compact form and secure clamping for repeatable accuracy

A short overall length of 125 mm combined with a modest weight of 0.11 kg keeps the overhang minimal, improving rigidity at the toolholder interface. The shank diameter of 12 mm is compatible with clamping blocks designated as 07, allowing secure fixation in standard toolholders and reducing micro‑movement under load. For precision turning tasks where concentricity and repeatability are essential, this configuration helps achieve tighter tolerances and consistent part geometry across batches.

Application guidance and compatibility

This boring bar is specified for indexable inserts of the DC-- 0702 format and is optimised for left‑hand cutting directions. The tool’s 16 mm diameter profile and 25 mm cutting height suit a range of light to medium turning operations typical in engineering, maintenance and small‑batch production. Its balance of compact dimensions and coolant capability makes it a practical choice for workshops seeking an adaptable, low‑mass tool that still delivers the thermal control necessary for longer insert life.

Contact Metav Werkzeuge for tailored technical advice and to arrange supply of the Teknik Makina A12K SDQCL boring bar (KA272TM) with internal coolant and DC-- 0702 insert compatibility

Technical data

• Article number: KA272TM
• Manufacturer: Teknik Cutting Tools / Teknik Makina
• ISO designation: A12K SDQCL

Key dimensions

• Shank diameter: 12 mm
• Diameter: 16 mm
• Cutting height: 25 mm
• Overall length: 125 mm
• Cutting angle: 107.5°
• Weight: 0.11 kg

Special features

• Internal coolant feed
• Left‑hand cutting orientation
• For DC-- 0702 indexable inserts
• Clamping designation: 07

FAQ

What insert type is required for this boring bar?
The boring bar is designed for DC-- 0702 indexable inserts; use inserts matching that format for correct seating and performance with the A12K SDQCL tool.

Can the tool be used for finishing and roughing cycles?
Yes. The combination of internal coolant and the bar’s geometry makes the A12K SDQCL suitable for both finishing and light to medium roughing where DC-- 0702 inserts are appropriate.

Does the bar require a special toolholder?
Standard holders compatible with a 12 mm shank and clamping designation 07 are suitable; secure clamping is recommended to maintain repeatable accuracy.

Is this a left‑hand or right‑hand tool?
This model is configured for left‑hand cutting, intended for operations where reverse turning direction is required.

How does internal coolant benefit machining with this bar?
Internal coolant directs fluid to the cutting edge, improving chip evacuation and reducing cutting temperatures, which extends insert life and supports consistent surface quality.

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