52mm Self‑Locking APU Drill Chuck SK50‑APU13, DIN 69871A - Vertex

Combine the self-clamping APU mechanism with DIN 69871A taper compatibility to secure consistent tool retention and quicker changeovers; the SK50-APU13 collet system offers a flexible clamping range for small shank tools. Order the SK-514 directly via Metav Werkzeuge or ask our consultants for application guidance.

SK-514 Drill chuck (APU self-clamping) — SK50 taper, DIN 69871A

The SK-514 is a self-clamping APU drill chuck engineered for DIN 69871A spindle interfaces, intended for precise tool holding of small shank twist drills and similar toolholders.

• Self-clamping APU mechanism
• Compatible with DIN 69871A taper
• SK50 collet system (APU13)
• Capacity Ø1–13 mm

Secure clamping that supports consistent machining results

The SK-514 brings a self-clamping APU principle together with the industry-standard DIN 69871A interface to provide dependable tool retention while reducing manual intervention during tool changes. The integrated SK50 collet arrangement (APU13) covers a Ø1–13 mm shank range, allowing straightforward use of common twist drills and small toolholders without additional adapters. The robust mass of approximately 3.9 kg contributes to axial stability under routine machining loads and supports repeatable alignment across production runs.

Simplified integration and smoother workflow on the shop floor

Compatibility with the DIN taper system and the SK50 collet standard makes the chuck easy to fit into existing machining centres and arbors. The APU self-clamping design shortens setup steps and helps to reduce non-productive time in batch processing or mixed production, improving throughput without altering machine interfaces. Produced by Vertex, the component is manufactured to suit standardised toolholding practices, supporting consistent operational procedures and efficient changeover routines.

Low-maintenance design that keeps shops productive

A straightforward mechanical design minimises upkeep: regular cleaning of the collet bore and clamping surfaces maintains accuracy and serviceability. The use of recognised standards for the taper and collet system ensures interchangeability and long-term availability of replacement parts. This combination of standard interfaces and durable construction delivers a practical balance between reliability and ease of maintenance for everyday shop use.

Contact Metav Werkzeuge for a compatibility check and detailed specifications for the SK-514 APU self-clamping drill chuck, or ask our consultants for application advice.

Technical data

• Article number: SK-514
• GTIN: 4061905093067
• Manufacturer: Vertex
• Standard: DIN 69871A

Core specifications

• Diameter: 52 mm
• Weight: 3.9 kg
• Capacity: Ø1–13 mm
• ECLASS: 21020490
• ETIM: EC002125

Features & compatibility

• Collet type: SK50-APU13
• Interface: DIN 69871A
• Self-clamping APU design
• Suitable for precision tool holding and small-shank twist drills

FAQ

What clamping range does the chuck support?
The SK-514 supports shank diameters from Ø1 to 13 mm, utilising the SK50-APU13 collet system for secure retention.

Is the chuck compatible with my spindle taper?
This chuck uses the DIN 69871A interface and the SK50 taper specification; compatibility is ensured where machines accept that standard taper.

How heavy is the toolholder and what is its diameter?
The unit weighs approximately 3.9 kg and has an external diameter of 52 mm.

What maintenance is required to keep accuracy?
Periodic cleaning of the collet and clamping surfaces and inspection for wear will preserve the SK-514’s accuracy and clamping performance.

Can the chuck be used in milling and drilling centres?
Yes. The standard taper and collet compatibility make the chuck suitable for milling and drilling centres where precise axial alignment and secure toolholding are required.

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