The Wera 6004 Joker M self-setting open-ended spanner is a versatile hand tool designed for efficient and reliable work on hexagon fasteners ranging from 13 to 16 mm (1/2" to 5/8"). Its self-adjusting jaw automatically adapts to the fastener size, eliminating the need to switch between multiple spanners. The integrated mechanical ratchet function allows for quick and continuous screwdriving, while the lever clamping mechanism provides a secure, non-slip grip to minimise damage to fasteners. The compact size and slim head make it an excellent choice for working in confined spaces.

Key features and specifications:
• Self-setting parallel jaws: covers 13–16 mm (1/2"–5/8")
• Integrated lever clamping mechanism for anti-slip grip
• Mechanical ratchet function for efficient screwdriving
• 30° low return angle for work in restricted spaces
• Smooth jaws reduce marking and protect fastener surfaces
• Hanging hole for easy storage and tool organisation
• Compact length: 188 mm
• Head thickness: 12.4 mm
• Weight: 239 g
• Product dimensions: 210 x 50 x 27 mm
• Wera model number: 6004 Joker M (part no. 05020103001)

This spanner is ideal for electricians, mechanics, industrial technicians, and maintenance professionals who need a reliable tool for installation, repair, and assembly work. Suitable for both workshop and on-site use, the Wera 6004 Joker M is especially useful when working with various bolt sizes in tight or hard-to-reach areas where tool changes are impractical.

SKU: WE05020103001
EAN: 4013288216908