Wrenches/Sockets Wera Joker 12 mm

The Wera Joker 12 mm combination ratchet wrench is a high-quality tool manufactured from chromium-molybdenum steel with a nickel-chrome coating for corrosion resistance. With a 12 mm width and compact dimensions, this single-piece wrench is suitable for hexagon socket screws, bolts and nuts and is engineered to provide reliable torque transfer and durability in professional and DIY applications.

Advantages

The wrench features a replaceable metal plate in the jaw that holds nuts and bolts securely with hardened teeth, reducing the risk of dropping and slipping. An integrated limit stop prevents slipping around the bolt head and allows higher torque to be applied. The double-hex geometry ensures a positive connection with fasteners, while a 30° return angle at the open end reduces time-consuming flipping. The fine-tooth ratchet at the ring end has 80 teeth for operation in confined spaces, and the specially forged geometry provides improved strength and torque transfer. Colour coding on the handle enables quick size identification.

Suitable for

• Tightening and loosening hexagon socket screws, bolts and nuts
• Work in confined or hard-to-reach spaces requiring small ratchet angles
• Professional workshop use and demanding maintenance tasks
• DIY and home repairs where secure holding of fasteners is needed

Key specifications

• Size: 12 mm
• Material: Chromium-molybdenum steel with nickel-chrome coating
• Length/Height: 170.7 mm (height given in source)
• Depth: 8.5 mm
• Ratchet teeth: 80 (fine-tooth mechanism)
• Finish: Corrosion-resistant nickel-chrome
• Manufacturer code (MPN): 05073272001
• EAN: 4013288167323

How to use

Select the 12 mm Wera Joker wrench for the corresponding hexagon fastener. Place the open end or ring end on the bolt or nut, ensuring the jaw plate or double-hex geometry seats properly. For confined spaces, use the ring-end ratchet to apply torque with short back-and-forth movements; the 30° open-end return angle helps avoid flipping. If holding of the fastener is required, use the jaw holding function provided by the replaceable metal plate. Replace the metal plate if worn to maintain secure holding.

Usage recommendations

Use the wrench within its intended 12 mm size and avoid applying excessive torque beyond the tool or fastener rating. Regularly check the replaceable jaw plate and ratchet mechanism for wear and keep the tool clean and lightly lubricated to maintain ratchet performance and corrosion protection.