196mm Extension Sleeve MK2 to MK3 Hardened Ground to DIN 2187, D36mm - TECWERK

Take advantage of a DIN 2187‑compliant sleeve that combines precision, hardened construction and a compatible MK2–MK3 taper for reliable tool mounting; order directly via Metav Werkzeuge or consult the team for application guidance.

Extension sleeve DIN 2187 MK2×MK3, hardened and ground — TECWERK

The Extension sleeve DIN 2187 MK2×MK3 is a hardened and ground adaptor sleeve for extending reach and adapting tools with a Morse taper to an MK2 spindle, suited to precision workshop and industrial applications.

• DIN 2187 compliant accuracy version
• Fully hardened and ground inside and out
• MK2 outer taper to MK3 inner taper
• 196 mm overall length for extended reach

Precision and repeatable concentricity for high‑accuracy machining

The sleeve is designed to meet DIN 2187, ensuring a defined tolerance class for toolholders and adaptors. Manufactured as an accuracy version, the component is hardened and ground, which reduces deformation under load and preserves concentricity during repeated mounting cycles. This combination gives consistent run‑out performance and supports tight process tolerances in milling, drilling and turning operations, translating directly into lower scrap rates and fewer setup interruptions.

Secure taper fit and clear dimensional compatibility for tool selection

With an outer MK2 taper and inner MK3 taper, the adaptor permits use of smaller Morse‑taper tools in larger machine spindles without bespoke tooling changes. Key dimensions are D: 36 mm, L1: 121 mm and L2: 196 mm, offering a long‑reach option where extra clearance or accessibility is required. The construction suits tools with a Morse taper, maintaining a positive mechanical fit that simplifies changeover and preserves clamping reliability in production environments.

Durable construction to reduce downtime and maintenance

Built fully hardened and ground inside and out, the sleeve stands up to workshop stresses and resists wear over prolonged use. The robust finish reduces fretting and abrasive wear at contact surfaces, extending service life and cutting maintenance intervals. Reliability in the toolholder interface contributes to smoother machining, less vibration and a reduced need for rework — benefits that support efficient shopfloor routines and stable process outputs.

Contact Metav Werkzeuge for availability and application advice on the TECWERK extension sleeve (SKU 2000832325NW) — call +49 2822 7131930 or email info@metav-werkzeuge.com to request technical details or ordering support

Technical Data

• Article number: 2000832325NW
• Description: Extension sleeve DIN 2187 MK2×MK3, hardened and ground
• Manufacturer: TECWERK

Facts

• D: 36 mm
• L1: 121 mm
• L2: 196 mm
• Packaging unit: 1

Special features

• DIN 2187
• Accuracy version
• Fully hardened
• Ground inside and out
• For tools with Morse taper
• MK2 outer taper
• MK3 inner taper

FAQ

What materials is this sleeve suitable for when used in machining applications?
The extension sleeve is a mechanical adaptor and does not limit material choice; when fitted as intended the TECWERK extension sleeve (MK2×MK3, SKU 2000832325NW) supports machining of steels, non‑ferrous metals and typical workshop materials depending on the mounted tool and machine settings.

How does DIN 2187 classification affect workshop use?
DIN 2187 specifies dimensional and run‑out criteria for adaptors and sleeves; compliance for this TECWERK sleeve means predictable mating characteristics, consistent concentricity and suitability for precision toolholding in serial production.

Is the sleeve suitable for long‑reach drilling and milling operations?
Yes, the 196 mm overall length provides additional reach compared with standard sleeves, making it appropriate for applications that require extended clearance while retaining a secure taper fit.

How should the sleeve be installed to ensure correct taper engagement?
Clean all taper surfaces before assembly and ensure proper seating into the spindle; the hardened and ground finish on the sleeve promotes reliable contact. For specific mounting torque or retention systems consult Metav Werkzeuge for machine‑specific guidance.

Can this adaptor be used interchangeably with other brands of Morse taper tooling?
The sleeve follows DIN 2187 and is intended for standard Morse taper tooling; compatibility with other brands should be determined by verifying taper sizes and tolerances against the tool catalogue; reference SKU 2000832325NW when checking fit.

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