52mm SK40 APU Self‑Clamping Drill Chuck APU13, DIN 69871A - Vertex

Take advantage of the combination of APU self‑tightening clamping, SK40 taper compatibility, and a compact 1–13 mm capacity to maintain steady production and reduce tool change time. Order the unit directly via Metav Werkzeuge or consult our team for application-specific advice.

Drill chuck SK-512 — APU self‑tightening drill chuck with SK40 taper and 1–13 mm capacity

Drill chuck SK-512 provides precise, secure clamping for small-diameter tooling in machining and workshop environments

• APU self‑tightening spindle mount SK40
• Capacity Ø1–13 mm for twist drills
• Compliant with DIN 69871A taper
• Robust 52 mm body, weight 1.9 kg

Secure clamping that reduces downtime and rejects

The APU self‑tightening mechanism ensures consistent radial grip on twist drills, reducing the risk of tool slip under load and lowering scrap rates. This automatic tightening action converts spindle torque into clamping force, which improves repeatability and shortens non-productive time during tool changes. For operations that require frequent swapping between drills, the combination of reliable grip and rapid collet changes helps sustain throughput without compromising hole quality.

Standardised interface for straightforward integration

Built to the DIN 69871A specification and finished with an SK40 mounting, the chuck offers compatibility with a broad range of milling spindles and toolholders commonly found in industrial shops. Conformance to this standard simplifies retrofitting and inventory planning, while the accurately manufactured taper maintains concentricity for precision machining. Reduced runout translates directly into better surface finish and longer drill life, a measurable advantage in production and maintenance settings.

Compact design that eases handling and maintenance

With a 52 mm body and a mass of 1.9 kg, the chuck balances robustness with manageable weight for routine handling and toolroom workflows. The collet SK40‑APU13 accepts tools across the 1–13 mm range, covering the most frequently used twist drill sizes without the need for multiple holders. Regular upkeep requires only basic cleaning and inspection of the clamping surfaces and collet; when replacement is needed, the modular design keeps downtime to a minimum and supports continuity in workshop operations.

Choose the Vertex SK-512 for dependable small-diameter clamping — contact Metav Werkzeuge in Emmerich for tailored advice or to request technical clarification via info@metav-werkzeuge.com

Technical Data

• SKU: SK-512
• GTIN: 4061905093111
• Manufacturer: Vertex

Core data

• Diameter: 52 mm
• Capacity: Ø1–13 mm
• Weight: 1.9 kg
• Standard: DIN 69871A

Special features

• Mounting: SK40 taper
• Collet type: SK40‑APU13
• eClass: 21020490
• ETIM: EC002125

FAQ

What tool range does the chuck cover? The chuck accepts twist drills and similar tooling from 1–13 mm, using the SK40‑APU13 collet arrangement.

Is the unit compatible with standard milling spindles? Yes. The product is designed to the DIN 69871A interface and mounts on SK40 spindles for straightforward integration.

How does the APU self‑tightening mechanism benefit machining? The APU self‑tightening action converts spindle torque into secure clamping force, improving grip during cutting and reducing tool slippage and runout.

Can the collet be replaced on-site? The collet SK40‑APU13 is a modular component and can be replaced quickly in the workshop to minimise downtime.

Who manufactures this chuck? The chuck is produced by Vertex; the item is listed under SKU SK-512 and intended for industrial and workshop clamping tasks.

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