Description

The WERA Joker 6004 4-Piece Self-Setting Spanner Set (05020110001) brings together four Joker 6004 spanners covering the most common metric and imperial hexagonal fastener sizes in a single convenient set. Each spanner in the set features Wera’s patented self-setting mechanism that automatically grips the fastener when positioned, eliminating the time wasted adjusting conventional spanners and virtually removing the risk of slipping.
The four spanners in the set collectively cover sizes from small control-cabinet fasteners up to medium-large bolts, making this a comprehensive set for electrical installation, panel building, and general mechanical maintenance. The ratchet function on each tool enables continuous driving with a minimal 30° return angle — critical for working in confined spaces around busbars, cable trays, and enclosure fixings.
Supplied in a Wera Keep-It box, the set keeps all four tools neatly organised and protected during transport. For professional electricians and panel builders who want to carry fewer tools without sacrificing size coverage, this set is a smart, innovative solution that genuinely improves daily working efficiency.