250mm Chuck Key 12mm Square Shank With Spring-Loaded Sleeve, For 50mm Chuck Ø - RÖHM

Take advantage of a compact, workshop-ready tightening tool that combines a 12 mm square drive with a spring-mounted sleeve to reduce the risk of the key remaining in the chuck; reliable handling and simple storage support smoother work processes. Order the RÖHM chuck key directly via Metav Werkzeuge or ask the consultants for compatibility advice.

RÖHM Spannschlüssel for chuck, 12 mm square drive with spring-mounted sleeve

RÖHM Spannschlüssel f.Futter-D.250mm 4-KT.12mm RÖHM is a purpose-built chuck key designed for secure engagement with compatible four-sided square drives and everyday workshop use.

• 12 mm square drive for secure engagement
• Spring-mounted sleeve prevents key jamming
• Compact design for simple storage
• Suitable for standard four-sided chuck drives

Precise engagement for repetitive tightening tasks

The primary advantage of a high-quality chuck key lies in consistent force transmission and positive engagement. With a 12 mm square drive, this tool delivers a reliable interface to a four-sided chuck drive, reducing play and ensuring repeatable tightening sequences. In practice, this means less time checking jaw seating and more predictable clamping behaviour when preparing parts for machining. The robust drive geometry supports routine operations across general workshop and light industrial settings, providing a straightforward mechanical interface without the need for auxiliary adapters.

Design that prevents accidental locking in the chuck

A notable practical safeguard is the spring-mounted sleeve, which is engineered to prevent the key from becoming unintentionally lodged in the chuck. This feature reduces downtime caused by stuck keys and avoids minor incidents that interrupt the workflow. The insert square connection ensures the tool locates positively in the chuck drive and withdraws cleanly when the sleeve is actuated. For workshops where quick tool changes and operator safety are priorities, this design detail enhances both convenience and operational safety without adding complexity.

Built for everyday workshop routines

Handy and compact, the key is suitable for being carried in a toolbox or mounted on a workstation rail for immediate access. The straightforward construction focuses on dependable mechanical function rather than electronic or adjustable components, which makes it particularly well suited to maintenance teams, toolroom staff and metalworking technicians who require a no-frills tightening implement. The absence of electronic parts or consumable elements means predictable service life and low maintenance effort, helping to keep routine operating costs down while preserving consistent clamping performance.

Clear compatibility cues and selection advice

Compatibility is primarily determined by the 12 mm square drive and the four-sided chuck interface; when selecting a tightening key, verify that the chuck accepts a 12 mm square insert. The tool’s features — including the spring-mounted sleeve and insert square configuration — are intended to match standard four-sided drives used in many chucks. For bespoke or non-standard drive forms, consult technical documentation or request brief verification to confirm fit. Metav Werkzeuge can provide rapid clarification on matching this key to specific chuck models, ensuring the right tool arrives at the workbench first time.

For purchasing information or to confirm compatibility of the RÖHM chuck key with existing chucks, contact Metav Werkzeuge for tailored advice and prompt supply from Emmerich.

Technical data

• Article number: 4121409080NW
• SKU: 4121409080NW
• Brand: RÖHM
• Product type: Chuck key
• Packaging unit: 1

Facts

• Square drive: 12 mm
• Four-sided drive type: 4-KT (four-sided)
• UID: 4121409080NW

Special features

• Spring-mounted sleeve prevents key from remaining in the chuck
• Insert square for positive engagement
• Compact format suitable for workshop storage

FAQ

What square drive size does this chuck key use?
The RÖHM chuck key features a 12 mm square drive, providing positive engagement with standard four-sided chuck drives.

Does the key prevent accidental jamming in the chuck?
Yes, the tool includes a spring-mounted sleeve designed to reduce the risk of the key being left in the chuck after use.

Is this key suitable for heavy industrial chucks?
The tightening key is intended for standard four-sided chuck drives; confirm the chuck’s drive format and load requirements before use to ensure suitability.

How is the RÖHM chuck key supplied?
The item is supplied as a single piece per packaging unit, listed under SKU 4121409080NW.

Can the insert square be removed or replaced?
The tool uses an insert square connection for secure engagement; consult technical specifications or Metav Werkzeuge for guidance on service or replacement options.

Manufacturer: RÖHM; Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com