Wiha U540DS040150C-01 Hex Key L-Key, 4 mm, Chrome-Plated 45455

This Wiha hex key stands out for its through-hardened chrome-vanadium steel construction, offering a durable and reliable tool for fastening and loosening hex socket screws. The chrome-plated finish provides corrosion resistance and a smooth surface, while the precise 4 mm hex profile ensures a secure fit in standard fasteners.

Highlights

• 4 mm metric hex key size
• Short arm length: 13 mm
• Long arm length: 50 mm
• Chrome-vanadium steel, through-hardened
• Chrome-plated finish
• Standard L-key design without ball end
• Conforms to DIN 911

In daily use

The L-shaped design provides excellent leverage for tightening or loosening hex socket screws. The short arm is ideal for access in tight spaces, while the long arm offers additional torque. The chrome plating reduces friction and protects the tool from rust, ensuring long-term performance in workshops, assembly lines, and maintenance tasks.

Full specifications

• Tool type: Hex key (L-key)
• Key profile: Hexagon
• Key size (metric): 4 mm
• Arm length (short): 13 mm
• Arm length (long): 50 mm
• Material: Chrome-vanadium steel
• Surface finish: Chrome-plated
• Hardness: Through-hardened
• Standard: DIN 911
• Ball end: No
• Insulated: No
• Magnetic tip: No
• Handle type: L-handle (integrated)
• Packaging: Single tool

Final note

A reliable, precision-made hex key for professional and DIY use, combining durability with a classic L-key design.