26mm Grooving Tool Holder 3mm Cutting Width, 40mm Cutting Height, S20Q Shank, For 3C Inserts, 180mm Overall Length, 20mm Shank Diameter - Teknik Makina

The combination of a 20 mm shank and 180 mm overall length delivers consistent rigidity and reach for precise parting and grooving. Benefit from standardised compatibility with 3C indexable inserts and the S20Q shank designation for straightforward integration on conventional toolposts. Order the parting tool holder directly via Metav Werkzeuge or ask the consultants if needed.

Parting Tool Holder K646TM — 20 mm shank, 180 mm overall length (Teknik Makina)

A compact and rigid parting tool holder K646TM intended for precision grooving and cut‑off operations on CNC lathes, optimised for indexable insert use

• 20 mm shank diameter for rigid clamping
• 180 mm overall length for deep reach
• Compatible with 3C indexable inserts
• Cutting width 3 mm, cutting height 40 mm

Superior rigidity for accurate cut-off operations

The holder's 20 mm shank and balanced mass mean reduced vibration and repeatable positioning at the toolpost, which improves surface finish and extends insert life. With an overall length of 180 mm, the design offers secure access for deeper parting tasks while maintaining stability. The moderate weight of 0.459 kg keeps the toolholder easy to handle during set-up yet substantial enough to avoid chatter under typical turning loads. These measurable characteristics translate directly into fewer rejected parts and a steadier production flow.

Fast changeover through standardised insert and shank fittings

Compatibility with 3C indexable inserts and the holder designation 3C‑R S224 enables rapid insert replacement and predictable cutting geometry. The cutting width 3 mm in combination with a cutting height of 40 mm provides a clear specification for selecting inserts and calculating tool offsets in CAM programs. The S20Q shank designation aligns the toolholder with established shank standards, simplifying inventory management and reducing setup times across different machines.

Designed for reliable workshop integration and consistent results

The toolholder's standard dimensions and clear technical data support straightforward programming of offsets and predictable tool life, which benefits batch production and repetitive operations. The device's compatibility with indexable inserts reduces tooling costs by allowing frequent insert changes without replacing the holder body. As a result, the holder supports efficient maintenance cycles and limits downtime while preserving machining quality.

For demanding parting and grooving applications, request the Teknik Makina K646TM from Metav Werkzeuge — Metav’s specialists in Emmerich can advise on suitability and supply directly via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: K646TM
• Manufacturer: Teknik Makina
• Designation: Parting tool holder (Stechklemmhalter)

Facts

• Shank diameter: 20 mm
• Overall length: 180 mm
• Cutting height: 40 mm
• Cutting width: 3 mm
• Diameter: 26 mm
• Weight: 0.459 kg

Special features

• Compatible with insert type: 3C
• Shank designation: S20Q
• Holder designation: 3C‑R S224
• Suitable for indexable inserts

FAQ

Which insert type fits this holder?
The K646TM accepts 3C indexable inserts, matching the specified insert family for predictable cutting geometry.

What shank size is required for clamping?
The holder uses a 20 mm shank (S20Q), suitable for standard toolpost clamping systems.

What is the overall length and how does it affect reach?
With an overall length of 180 mm, the toolholder provides extended reach for deeper parting while maintaining rigidity.

What cutting dimensions are available from the holder?
The K646TM is specified for a cutting width of 3 mm and a cutting height of 40 mm, which guides insert selection and tool offset programming.

Who manufactures the toolholder and who is responsible for supply?
The K646TM is manufactured by Teknik Makina; supply and responsibility are handled by Metav Werkzeuge for distribution in Europe.

Manufacturer / Responsible: 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; info@metav-werkzeuge.com