180mm Stech Tool Holder 4mm Cutting Width S20Q Shank, For 4C Inserts, 35mm Cut Height, 20mm Shank Diameter - Teknik Makina

Benefit from precise grooving performance with solid clamping and compatibility with ISCAR 4C indexable inserts; the robust 20 mm shaft and 35 mm cutting height provide stable, repeatable cuts for batch turning. Order the grooving clamp holder directly via Metav Werkzeuge or consult the specialists for tailored selection advice.

Grooving clamp holder K676TM — 20 mm shaft, 4 mm cutting width (Teknik Makina)

A grooving clamp holder engineered for secure parting and grooving in CNC turning applications, compatible with ISCAR 4C indexable inserts

• Solid clamping for repeatable grooving
• Compatible with ISCAR 4C indexable inserts
• 20 mm shaft for secure tool holding
• 4 mm cutting width for narrow grooves

Consistent cuts and measurable productivity gains

Precision in series production depends on stable toolholding and predictable geometry. The K676TM grooving clamp holder delivers both through a 20 mm shaft and a 35 mm cutting height, which together reduce vibration and improve edge engagement during parting and grooving cycles. Stable contact between holder and insert leads to improved repeatability and fewer rejects, which supports faster throughput and lower rework costs. The measured stability of the clamping system makes process parameters easier to reproduce across shifts and machines.

Fast integration with established tool systems

Designed for seamless integration on standard lathe set-ups, this holder accepts ISCAR indexable plates in the 4C format and matches the common boring bar ISO designation S20Q, simplifying tool management in mixed-tool environments. The 4 mm cutting width suits narrow groove requirements while the holder’s compatibility with a recognised plate size reduces the need for multiple specialised tool stocks. Clear mechanical interface data enables straightforward set-up and shortens changeover times, supporting leaner workshop operations.

Robust handling and compact dimensions for workshop use

With an overall length of 180 mm, a nominal diameter of 25 mm, and a mass of 0.461 kg, the tool achieves a balance between reach and rigidity. The clamping principle is engineered for secure retention of the insert during interrupted cuts, which benefits both finish quality and tool life. The compact footprint and predictable centre of mass also ease tool programming and collision avoidance in CNC routines, while the modest weight supports safe manual handling during tool changes.

Application scope and recommended use cases

This clamping holder is suited to precision parting and groove machining tasks in small to medium batch production and trade workshops that rely on indexable insert systems. The holder’s specification—S20Q interface, 4C insert format and defined cutting geometry—makes it a practical choice for operations aiming to standardise tooling across multiple turning centres. For process optimisation or bespoke holder variants, Metav Werkzeuge’s consultants can assist with selection based on machine capability and insert style.

For reliable grooving with Teknik Makina’s precision clamping, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss the K676TM and receive personalised ordering advice.

Technical data

• Article number: K676TM
• Manufacturer: Teknik Makina
• eClass: 21181005
• Brand: Teknik Makina

Facts

• Shaft diameter: 20 mm
• Cutting height: 35 mm
• Cutting width: 4 mm
• Overall length: 180 mm
• Diameter: 25 mm
• Weight: 0.461 kg

Special features

• Compatible with ISCAR 4C indexable inserts
• Boring bar ISO designation: S20Q
• Holder designation: 4C-R DGN
• Suitable insert size: 4C

FAQ

Which insert type fits this holder? The holder is compatible with ISCAR 4C indexable inserts, designed to accept standard 4C plates for grooving and parting.

What are the key dimensions to check for machine setup? Essential dimensions are the 20 mm shaft diameter, 35 mm cutting height, 4 mm cutting width and 180 mm overall length, which determine clearance and clamping requirements for the K676TM.

Is the tool suitable for CNC lathes used in small-batch production? Yes; the design of the grooving clamp holder supports precise, repeatable parting and grooving cycles typical in small to medium batch CNC turning.

How does the clamping concept affect tool life and finish? The secure clamping reduces insert movement and vibration, which contributes to improved surface finish and extended insert life when machining under advised parameters.

Can the holder be integrated with existing S20Q tool stocks? The holder uses the S20Q interface and is therefore compatible with systems that accommodate that boring bar designation.

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