46mm 12mm Bore Reducer Sleeve For Boring Bar Holder Form E Hardened And Ground - TECWERK

Robust, hardened and ground construction combined with a precise 12 mm bore and a 46 mm clamping length provides stable, repeatable clamping for drill-bar assemblies; order the reducing sleeve directly via Metav Werkzeuge or consult our specialists for application advice

TECWERK Reducing sleeve Form 1 — 12 mm bore, 25 mm outer diameter, 46 mm clamping length

The Reducing sleeve Form 1 is a precision clamping insert for drill-bar holders, designed to secure 12 mm shanks in assemblies with a 25 mm outer diameter while maintaining axial accuracy and repeatable positioning

• Hardened and ground for long service life
• 12 mm internal bore for precise seating
• 25 mm outer diameter to suit Form E2 holders
• 46 mm clamping length for secure engagement

Durable engineering for repeatable clamping results

The sleeve is manufactured hardened and ground, a finish that reduces wear and maintains concentricity over repeated cycles. This robustness translates into fewer tool changes and more predictable machining outcomes, which benefits production planning and reduces unplanned downtime. With a 12 mm bore matched to standard drill-bar sizes, the component provides a close fit that minimises runout and supports consistent hole quality in series work.

Straightforward compatibility that speeds setup

Designed specifically for holders with a 25 mm outer diameter and compatibility with Form E2 clamping systems, the component simplifies tool selection and reduces the need for additional adaptors. The standardised outer diameter ensures predictable engagement in common holders, while the precision finish enables stable axial alignment. For workshops aiming to streamline changeovers, this compatibility reduces set-up time and helps maintain process integrity across different operators.

Secure grip and shorter rework cycles

A 46 mm clamping length gives extended contact area between sleeve and holder, improving axial stability and reducing the risk of slippage under load. Longer engagement promotes even distribution of clamping forces, which in turn limits deformation of the tool shank and helps preserve cutting geometry. The result is fewer rejects and lower rework rates, particularly in repetitive drilling tasks where consistency is essential.

Practical choice for workshop and production environments

Selecting a hardened, ground reducing sleeve supports a rational workflow: less wear, predictable performance and straightforward integration into existing clamping systems. Combined with Metav’s supply reliability and technical advice, this option is intended for technicians and purchasers who prioritise precision, repeatability and a durable component life. Metav Werkzeuge’s inventory and expertise contribute to dependable availability and clear technical guidance for implementation.

Contact Metav Werkzeuge for tailored advice on the TECWERK reducing sleeve and reliable supply from Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000834204NW
• Product: Reducing sleeve (Form 1)
• Brand: TECWERK
• Form: 1
• Packaging unit: 1

Facts

• Internal bore (d1): 12 mm
• Outer diameter (d): 25 mm
• Clamping length (L): 46 mm

Special features

• Hardened and ground finish
• For drill-bar holders Form E2
• Precise seating for 12 mm shanks

FAQ

Is this reducing sleeve compatible with Form E2 holders? The TECWERK Reducing sleeve Form 1 (SKU 2000834204NW) is specified for use with drill-bar holders of Form E2, the 25 mm outer diameter ensuring correct engagement in compatible holders

What are the exact dimensions of the sleeve? The reducing sleeve (TECWERK, 2000834204NW) has an internal bore of 12 mm, an outer diameter of 25 mm and a clamping length of 46 mm

How does the hardened and ground finish affect performance? The hardened and ground surface of the TECWERK Reducing sleeve Form 1 improves wear resistance and maintains concentricity, which reduces runout and supports consistent hole quality over prolonged use

How should the sleeve be installed in the holder? Install the TECWERK reducing sleeve by seating it concentrically into the Form E2 holder until fully engaged, then clamp the drill bar to the specified torque to ensure stable axial retention

Why is the 46 mm clamping length important? A 46 mm clamping length on the TECWERK reducing sleeve Form 1 increases contact area for better axial stability, reducing slippage and helping to preserve cutting geometry during repetitive drilling

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