11-piece ring spanner set, metric sizes; on a mounting rail. The Joker 6003 achieves a doubling of engagement points through the combination of the 7.5° angled jaw and the double hexagon geometry. With a repeated 180° rotation of the wrench around its longitudinal axis while screwing, there are four engagement options, allowing nuts and bolt heads to be "gripped" every 15°. This makes screwing significantly easier, especially in tight spaces. The slim yet robust ring side is angled 15° to the tool axis. The high-quality surface treatment provides excellent and long-lasting corrosion protection. With the tool finder Take it easy: color coding by size. The clamps on the rail ensure a perfect hold of the tools. The rail securely attaches to metal surfaces with a strong magnet. Alternatively, the rail can also be screwed to a wall.