194mm Extension Sleeve Morse Taper MT3 to MT2 Hardened Ground DIN 2187 - TECWERK

Take advantage of precise clamping and extended reach through the combination of DIN 2187 accuracy and a fully hardened, ground sleeve; ideal for repeatable setups and reduced tool wear. Order procurement or request technical advice via Metav Werkzeuge for a seamless supply and application support.

Extension sleeve DIN 2187 MK3 to MK2 (hardened & ground) – TECWERK

The Extension sleeve DIN 2187 MK3 to MK2 is a morse taper adapter designed to extend tool reach while maintaining DIN 2187 accuracy for workshop and production toolholding applications.

• DIN 2187 accuracy class
• Hardened and ground inside/outside
• Morse taper MK3 to MK2
• 194 mm total length for deep reach

Maintain machining accuracy with standard-compliant taper connection

The adapter is manufactured to DIN 2187, ensuring a standardised interface between spindle and tooling. By providing a reliable Morse taper connection from MK3 to MK2, the sleeve supports consistent concentricity and repeatable positioning across batches. This standard conformity reduces setup variation, which in turn lowers scrap rates and stabilises cycle times in both workshop and series production environments. The component is therefore suited for use where predictable tool transfer and accuracy are required.

Robust, hardened construction for long service life

Made in an accuracy version with a fully hardened body and ground internal and external surfaces, the sleeve resists wear that typically increases runout over time. The hardened, ground finish preserves the fit between taper surfaces and reduces micro-movements under load, contributing to extended tool life and fewer rebalancing interventions. In practice, this durability translates into less frequent replacement and more continuous machine uptime, a clear advantage for demanding machining routines.

Designed for deep-reach operations and straightforward integration

With a total length of 194 mm (L2) and a projection length of 100 mm (L1), and an outer diameter of 30 mm, the sleeve provides additional reach for operations in recesses or on long tool engagements without compromising stability. The adapter is intended for tools with a Morse taper shank and is therefore a straightforward solution for adapting MK2 tools to an MK3 spindle or holder. Compatibility with standardised tooling makes it a practical choice when depth or accessibility would otherwise require non-standard setups.

For reliable extension and standard-compliant toolholding, contact Metav Werkzeuge for procurement and technical advice — Metav Werkzeuge in Emmerich can provide delivery, specification support and further information via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000832335NW
• Manufacturer: TECWERK
• Standard: DIN 2187
• Type: Extension sleeve (Morse taper adapter)

Facts

• Total length L2: 194 mm
• Projection L1: 100 mm
• Diameter D: 30 mm

Special features

• Accuracy execution according to DIN 2187
• Fully hardened
• Ground inside and outside
• For tools with Morse taper (MK3 → MK2)

FAQ

Is this sleeve compliant with industry standards for taper adapters? Yes. The sleeve is manufactured to DIN 2187, ensuring standard-compliant dimensions and fit for taper connections.

Which Morse tapers are connected by this adapter? The component mates an MK3 taper to an MK2 taper, enabling MK2 shank tools to be used with MK3 spindles or holders.

What are the key dimensions to consider for depth-sensitive applications? Key dimensions are a total length L2 of 194 mm, a projection L1 of 100 mm, and a diameter D of 30 mm, which together determine reach and clearance.

How does the hardened and ground finish affect performance? The fully hardened and ground surfaces preserve taper fit and reduce wear, improving long-term concentricity and decreasing the likelihood of runout.

Can this sleeve be used for general workshop tooling without modification? Yes. The design follows DIN 2187 and is intended for direct use with tools that have a Morse taper shank, allowing straightforward integration into standard setups.

Manufacturer/Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund