25mm Thread Milling Bar for Internal Threads for IR Indexable Inserts, Internal Coolant - Teknik Makina

Take advantage of the combination of internal coolant for reliable chip evacuation, a robust Ø 25 mm shank for deep internal threading and secure 16 IR indexable insert compatibility to maintain throughput and reduce downtime — order the tool directly via Metav Werkzeuge or request advice from our consultants.

Threading boring bar K327-5TM — internal coolant, Ø 25 mm shank, for 16 IR indexable inserts (Teknik Cutting Tools)

The Threading boring bar K327-5TM is engineered for internal thread machining using IR-style indexable inserts and is designed to deliver consistent clamping and coolant supply for stable production.

• Internal coolant for consistent chip control
• Ø 25 mm shank for deep internal threading
• Compatible with 16 IR indexable inserts
• Torx M3.5x11 fastening with T15 key

Stable chip control and longer tool life with internal coolant

The integrated internal coolant channel ensures directed fluid flow to the cutting zone, improving chip evacuation and reducing heat at the tool–insert interface. This results in a more consistent cutting temperature, which helps to extend insert life and preserve thread quality over longer production runs. For operations where repeatability matters, the coolant feed supports steady material removal rates and fewer stoppages for cleaning, contributing to uninterrupted machining cycles and improved overall throughput.

Secure insert clamping for quick changeovers and process reliability

A positive clamping concept is realised by the Torx M3.5x11 fastening screw, tightened with a T15 key, which provides a reliable and repeatable seat for the indexable insert. The use of standard 16 IR inserts enables quick replacement and reduces setup time, while the screw-and-seat arrangement minimises micro-movement under cutting loads. This design reduces the risk of chatter and maintains thread form accuracy, offering clear productivity benefits in batch production and mixed-series work.

Design tailored for accessibility and exact positioning

With a Ø 25 mm shank and 200 mm overall length, the tool is dimensioned to reach deeper internal threads while preserving stiffness. The supplied shim BSP10 and the U-plate TA060 facilitate exact seating and alignment of the insert carrier, allowing fine adjustment during mounting. These features combine to reduce set-up iterations and enable faster first-off conformity — a practical advantage when switching between workpieces or when re-establishing a fixture after maintenance.

Recommended working context and handling guidance

The bar is intended for internal thread production using IR indexable inserts; pairing it with appropriately specified inserts and a controlled coolant supply yields the best balance between surface finish and insertion life. Routine inspection of the Torx screw torque and periodic examination of the coolant channel are advised to sustain performance. For workshops integrating the tool into existing toolholders, confirm compatibility with the collar and seating dimensions to ensure secure clamping and concentricity during high-speed operation.

For technical consultation or to source the K327-5TM directly, contact Metav Werkzeuge — Metav’s specialists can advise on insert selection, mounting details and supply logistics; email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored support

Technical data

• Article number: K327-5TM
• Manufacturer: Teknik Makina

Core measurements

• Diameter: 25 mm
• Overall length: 200 mm

Design & features

• For inside thread for IR indexable inserts (16 IR)
• Internal coolant: yes
• Torx screw: M3.5x11
• Torx key: T15
• Shim: BSP10
• U-plate: TA060

FAQ

What insert type does this boring bar accept?
The threading boring bar K327-5TM is designed for 16 IR indexable inserts, enabling straightforward insert swaps and consistent seating.

Is there coolant through the tool?
Yes — the K327-5TM features internal coolant to improve chip evacuation and stabilise cutting temperatures during internal thread machining.

What are the key dimensions for setup?
The bar has a Ø 25 mm shank and an overall length of 200 mm, suitable for deeper internal threading where rigidity and reach are required.

How is the insert secured in the tool?
Insert clamping is achieved with a Torx M3.5x11 screw tightened using a T15 key, providing a reliable and repeatable fixing for the indexable insert.

Are there any alignment accessories supplied?
The tool is delivered with a BSP10 shim and a TA060 U-plate to assist with accurate seating and alignment during installation.

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