25mm Face Clamping Chuck Weldon Shank DIN 69871 Form AD, 6mm Shank Bore - TECWERK

Benefit from precise clamping via the SK40 interface, the 6 mm clamping diameter and the H4 bore tolerance for consistently accurate tool positioning; order the face clamping chuck directly via Metav Werkzeuge or consult our advisers for tailored support.

TECWERK face clamping chuck — SK40, Weldon, 6 mm clamping

The TECWERK face clamping chuck is a DIN 69871 Form AD toolholder for secure mounting of cylindrical-shank cutters with lateral drive flat.

Weldon shank for positive drive and axial security DIN 69871 Form AD steep taper for machine spindle compatibility 6 mm clamping diameter, H4 bore tolerance for concentricity SK40 taper with 50 mm projection length for deeper tool reach

Precision alignment for repeatable machining

The DIN 69871 Form AD interface combined with the SK40 taper ensures a stable machine-to-tool connection that reduces runout and improves reproducibility. With a 6 mm clamping diameter and H4 bore tolerance, the holder delivers consistent concentricity across tool changes, so the machining process requires fewer adjustments and yields more predictable part quality. This precision is especially beneficial where tight tolerances are demanded and where repeatable setup saves time in series production.

Fast, secure tool retention for reduced downtime

Equipped with a Weldon shank (drive flat) and designed to accept cylindrical shank cutters to DIN 1835‑B, the chuck provides positive lateral drive and reliable torque transmission. The 50 mm projection (A: 50 mm) gives extra reach while keeping the tool firmly seated, which reduces the risk of slippage under cutting loads. Faster tool exchanges and secure retention translate into improved throughput and less unplanned downtime during machining cycles.

Built for standardised workflows and dependable supply

The holder is manufactured to familiar industry norms, supporting straightforward integration into existing tool inventories and machine setups. The combination of standard conformity and measurable specifications—such as the H4 bore tolerance and the 25 mm body diameter—facilitates predictable performance across tool fleets. Supplied through Metav Werkzeuge from Emmerich, the product benefits from a quality filter and a dependable logistics backbone that helps maintain uninterrupted workshop operation.

For enquiries about SK40 tooling, spindle compatibility or delivery from Metav Werkzeuge, contact our advisers for a personalised recommendation and prompt supply from Emmerich.

Technical Data

• Article number: 2000833717NW
• Norm: DIN 69871 Form AD
• Product type: Face clamping chuck (Flächenspannfutter)
• Brand: TECWERK

Facts

• Diameter (D): 25 mm
• Clamping diameter (d): 6 mm
• Projection/length (A): 50 mm
• Bore tolerance: H4
• Spindle taper: SK40

Special features

• Weldon shank (lateral drive flat)
• For tools with cylindrical shank to DIN 1835‑B
• Steep taper per DIN 69871 Form AD
• Designed for repeatable, positive drive and secure retention

FAQ

What machines are compatible with this holder? The TECWERK face clamping chuck is designed for machines with an SK40 spindle taper and a DIN 69871 Form AD interface; compatibility depends on the machine spindle matching these standards.

Which tool shank types can be used with this chuck? Tools with a cylindrical shank and a lateral drive flat to DIN 1835‑B are suitable for this Weldon-style face clamping chuck (SKU 2000833717NW).

How does the H4 bore tolerance affect performance? The H4 bore tolerance ensures a tight, concentric fit around the clamping bore, reducing runout and improving repeatability during tool changes for consistent machining results.

Is the 50 mm projection suitable for deep operations? The A: 50 mm projection provides extra reach while maintaining a secure connection; it is suitable for operations requiring modest additional tool length without compromising stability.

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