21mm End Mill For LNMU 0303 Indexable Inserts, 3 Flutes, 150mm Overall Length - Teknik Makina

Take advantage of a compact design that combines a Ø21 mm cutting diameter, three cutting edges and a robust 20 mm shank for steady machining and predictable chip control; order the cutter directly via Metav Werkzeuge or ask our consultants for application advice.

Insert milling cutter S674TM by Teknik Makina — Ø21 mm, 3 cutting edges

The insert milling cutter S674TM is a precision cutter body engineered for LNMU 0303 indexable inserts, intended for stable face and peripheral milling where fast insert replacement and repeatable tool set-up are required

• Designed for LNMU 0303 indexable inserts
• Cutting diameter Ø21 mm
• Three cutting edges for stable removal
• 20 mm shank with Torx screw M2.5x7

Stable cutting performance for predictable results

The S674TM body delivers consistent cutting performance through its three-flute arrangement and carefully proportioned geometry. The combination of a Ø21 mm cutting diameter and 3 cutting edges contributes to even load distribution across the tool, reducing vibration and promoting a regular surface finish. In practice, this means fewer rework cycles and more predictable cycle times on repetitive milling operations. The indexable system decouples cutting-edge wear from the holder, allowing quick replacement of worn inserts and minimising machine downtime.

Designed for straightforward compatibility and quick servicing

Compatibility is central to the design: the cutter body accepts LNMU 0303 indexable inserts and is fitted using a Torx M2.5x7 fixing with a T8 key, enabling fast, repeatable clamping. The 20 mm shank ensures secure clamping in standard toolholders and provides rigid support during moderate axial and radial engagement. Clear mechanical interface standards reduce set-up time on the shop floor and simplify inventory management for insert and screw spares. The modular approach supports predictable maintenance intervals and a rapid return to production after insert changes.

Practical advantages for workshop efficiency

As a purpose-built cutter body, the S674TM supports operational efficiency by separating the cutting edge from the holder: worn inserts are exchanged instead of replacing complete cutters, which lowers tooling costs over time and accelerates recovery from edge wear. The compact Ø21 mm diameter and medium overall length make the tool well suited to confined work envelopes and operations where accessibility is a concern. For procurement and planning, the visible mechanical specification—shank Ø 20 mm, insert type LNMU 0303 and Torx fixing—facilitates exact matching with existing toolholders and spare-part lists, helping to reduce unnecessary stock and avoid compatibility issues.

Contact Metav Werkzeuge for availability and technical guidance on the Teknik Makina S674TM insert milling cutter; call +49 2822 7131930 or email info@metav-werkzeuge.com for tailored application support

Technical data

• Article number: S674TM
• Manufacturer: Teknik Makina
• Compatible inserts: LNMU 0303
• Compatible insert manufacturer: TNGLY-OKE
• Torx screw: M2.5x7
• Torx key size: T8

Facts

• Cutting diameter: 21 mm
• Overall length: 150 mm
• Shank diameter: 20 mm
• Number of cutting edges: 3
• SKU: S674TM
• eClass: 21180806
• ETIM: EC011860

Special features

• Insert milling cutter body for LNMU 0303 indexable inserts
• Torx M2.5x7 fixing for secure insert clamping
• 20 mm shank for standard toolholders
• Manufacturer: Teknik Makina
• Designed for quick insert replacement and reduced downtime

FAQ

What insert type does this cutter accept?
The cutter accepts LNMU 0303 indexable inserts; the S674TM by Teknik Makina is built specifically for that insert format and for quick insert changes.

Which shank diameter is supplied with the tool body?
The tool body features a 20 mm shank diameter, allowing secure mounting in compatible holders and providing the rigidity expected for the S674TM milling body.

How are the inserts secured to the cutter?
Inserts are secured with a Torx M2.5x7 screw; a T8 key is used for tightening and loosening to ensure repeatable clamping torque.

Is this cutter suitable for compact workspaces?
Yes; with a Ø21 mm cutting diameter and an overall length of 150 mm, the S674TM is suited to operations that require a compact tool profile and good accessibility.

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