Double-ended spanner has tilted ring-spanner head at first end of flat handle and open ended spanner at second end, with small marker projections in both ends
The spanner (10) has a flat handle (11) with a tilted ring-spanner head (13) at one end. The ring spanner has a pattern of ridges and grooves (15,16) to grip the hexagonal head of a bolt or a hexagonal nut. Three small triangular stops (14) are placed in the ends of some of the grooves. They are spaced 120 degrees apart and are coded with different colors. The open spanner head (12) has three hemispherical stops (140) at one edge.