26mm SteeClamp Holder For MGM 400 Indexable Inserts L180mm, 15.5mm Cutting Head Width - Teknik Makina

Benefit from the combination of a 26 mm cutting diameter and 180 mm overall length for stable, precise grooving; the holder’s compatibility with MGM 400 indexable inserts ensures rapid insert changes and consistent performance — order directly via Metav Werkzeuge or consult our specialists for application advice.

Grooving clamp holder K904TM — 26 mm, for MGM 400 indexable inserts (Teknik Makina)

The Grooving clamp holder K904TM is a left-hand toolholder engineered for precision grooving operations on CNC lathes using MGM 400 indexable inserts.

• 26 mm cutting diameter
• Compatible with MGM 400 indexable inserts
• 20 mm shank for secure mounting
• 4 mm cutting width for narrow grooves
• Left-hand cutting direction

Consistent groove geometry through a rigid design

A rigid clamping arrangement and a modest overall weight of 0.443 kg yield stable cuts and reduced vibration, which directly improves surface finish and tool life. The 26 mm diameter and 180 mm overall length balance reach with stiffness, making the holder suitable for groove depths within the tool’s design limits. For production environments this translates into reproducible groove geometry and fewer rejected parts, delivering measurable improvements in process reliability.

Fast set-up and secure clamping to save machine time

The holder features a 20 mm shank (S20Q) and is secured by an M5x12 clamping screw, operated with a 4 Allen key supplied specification. This standardised interface enables quick tool changes and straightforward integration into existing toolposts. The precise clamping arrangement minimises axial and radial play, so the operator or setter can expect consistent positioning of indexable inserts, reducing adjustment time between jobs.

Compatibility that reduces inventory complexity

Designed for MGM 400 indexable inserts, with recommended inserts from Korloy, the clamping holder simplifies logistics and tooling standardisation on the shop floor. Using a single insert family across multiple holders lowers spare-part counts and shortens changeover procedures, which is particularly beneficial in mixed-batch or high-mix production. The left-hand cutting configuration suits dedicated operations or setups where direction-specific tooling maximises cycle stability.

Practical cutting limits and application focus

The toolholder accommodates a maximum steplike cutting depth of 6 mm and a cutting width of 4 mm, making it well suited for narrow grooving and parting operations where material removal is localised. The 35 mm cutting height provides sufficient support for the insert while maintaining accessibility in confined workspaces. Typical applications include precision component grooving, undercutting and face operations on CNC lathes where controlled chip formation and repeatability are priorities.

For Teknik Makina quality and Metav Werkzeuge’s reliable supply from Emmerich, request tailored advice or an expedited delivery option from Metav Werkzeuge to ensure the holder fits the intended machine and process.

Technical data

• Article number: K904TM
• Label: 26mm Stechklemmhalter MGM 400 L180mm
• Manufacturer: Teknik Makina
• Product type: Grooving clamp holder

Facts

• Diameter: 26 mm
• Overall length: 180 mm
• Shank diameter: 20 mm
• Cutting height: 35 mm
• Cutting width: 4 mm
• Max grooving depth: 6 mm
• Weight: 0.443 kg
• Shank designation: S20Q
• Clamping screw: M5x12
• Allen key: 4
• Cutting direction: left

Special features

• Compatible with MGM 400 indexable inserts
• Recommended insert brand: Korloy
• Left-hand configuration
• Designed for precision grooving on CNC lathes
• Robust clamping for consistent insert positioning

FAQ

Which indexable inserts fit this holder?
The holder accepts MGM 400 indexable inserts; inserts from Korloy are listed as a compatible manufacturer for routine production use.

Is the cutting direction left or right?
This grooving clamp holder is configured for left-hand cutting direction, suitable for operations requiring left-hand approach geometry.

What are the shank and interface specifications?
The holder uses a 20 mm shank with designation S20Q and is secured by an M5x12 clamping screw; a 4 mm Allen key is specified for tightening.

What are the maximum cutting depth and width?
Maximum grooving depth is 6 mm and the effective cutting width is 4 mm, making the holder suitable for narrow, controlled groove profiles.

Can this holder be used in high-volume production?
Yes — the clamping stability, standardised shank interface and compatibility with MGM 400 inserts make the holder well suited to repetitive production runs where setup consistency and low tool-change time are required.

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