35.6mm Self-Clamping APU Collet Chuck SK30‑APU08, DIN 69871A - Vertex

Rely on the combination of self‑tightening clamping, DIN 69871A shank compatibility and a compact 0.7 kg construction for dependable toolholding in precision setups; order the SK-509 drill chuck directly via Metav Werkzeuge or consult our specialists for application advice.

SK-509 SK30 APU self‑tightening drill chuck with DIN 69871A shank — Vertex

The SK-509 is a drill chuck for SK30 spindles, providing a self‑tightening APU clamping system for tool diameters from Ø0.5 to 8 mm.

• SK30 taper with DIN 69871A shank
• Self‑tightening APU clamping principle
• Tool range Ø0.5–8 mm capacity
• Compact 0.7 kg design for dynamic spindles

Consistent clamping for repeatable machining

The self‑tightening APU mechanism secures tooling automatically as torque is applied, reducing slippage and helping to maintain constant concentricity during drilling and light machining. This mechanical principle offers reliable clamping without additional tightening tools, which reduces setup variability and contributes to stable process results. For production environments where reproducibility matters, the construction supports consistent part quality across repeat cycles.

Seamless integration with SK30 spindles and industry standards

Built to the DIN 69871A specification and featuring the SK30 taper, the chuck is intended for direct mounting on compatible spindles, enabling straightforward tool changes and minimal adapter requirements. The specified collet interface SK30-APU08 aligns with established tooling systems, allowing integration into existing machine fleets with little adaptation. This standardised fit supports faster machine turnarounds and lowers the risk of misalignment at installation.

Precision handling of small‑diameter tooling

With a usable range of Ø0.5–8 mm, the chuck is designed to hold small twist drills, reamers and similar tools with accuracy. The geometry and clamping method minimise runout, which helps to preserve hole quality and tool life when producing fine features. The capacity also allows for flexible tool selection within one holder, simplifying inventory and making the holder a practical choice for tasks that require small to medium tool diameters.

Lightweight, compact form for dynamic spindle performance

Weighing just 0.7 kg and measuring approximately 35.6 mm in diameter at its key interface, the chuck is compact enough to reduce inertia on the spindle while still delivering robust clamping. The low mass is advantageous for machines that demand quick acceleration and deceleration or frequent tool changes. As a Vertex product, the design emphasises dependable toolholding and straightforward maintenance, supporting efficient workshop workflows and predictable machining cycles.

Choose the Vertex SK-509 for dependable SK30 clamping with DIN 69871A compatibility — contact Metav Werkzeuge for tailored application guidance and ordering support.

Technical data

• Article number: SK-509
• SKU: SK-509
• GTIN: 4061905092206
• Brand: Vertex

Facts

• Diameter: 35.6 mm
• Weight: 0.7 kg
• Capacity: Ø0.5–8 mm
• Standard: DIN 69871A
• Collet type: SK30-APU08

Special features

• Self‑tightening APU clamping
• Tapered shank SK30
• Compact design

FAQ

What tool range can be held by this chuck?
The Vertex SK-509 drill chuck holds tools from Ø0.5 to 8 mm, making the SK-509 suitable for small-diameter drills and similar tooling.

Is the chuck compatible with standard SK30 spindles?
Yes, the chuck complies with the DIN 69871A specification and fits SK30 spindles via the SK30 taper and SK30-APU08 interface.

How heavy is the SK-509 and why does that matter?
The SK-509 weighs 0.7 kg; the lightweight design helps reduce spindle inertia and supports quicker acceleration and smoother dynamic performance.

Does the self‑tightening APU mechanism require extra tools?
No, the self‑tightening APU clamping principle secures tooling through spindle torque, avoiding additional tightening tools for routine operation.

What identifiers are available for ordering or inventory?
The Vertex SK-509 drill chuck is listed under SKU SK-509 and GTIN 4061905092206 for procurement and stock control.

Manufacturer: Vertex Machinery Works Co., Ltd.; No. 296, Sec. 1, Feng Shih Road, Fengyuan District, Taichung City 420, Taiwan