METRINCH 14 PCS COMBINATION SPANNER SET 8-23 MM / 5/16”-7/8” (MET-0125)

A bolt or nut has corners and flat sides. In contrast to the flat side, the corners are vulnerable and do not give a wrench a good grip.

 

During the development of the METRINCH system, the aim was to develop a wrench system with a long service life, but also a system that prevents damage to the bolts and nuts as much as possible. The patented METRINCH Wall Drive profile grips edges only on the surfaces and not on the corners. At the same time, the dimensions of sockets and wrenches have been chosen so precisely that a single METRINCH wrench fits both metric and inch bolts and nuts. For example, a 19mm METRINCH wrench fits on a metric bolt but also on the inch sizes 3/4” AF, 3/8” BSW, 7/16” BSF and even on the damaged or turned nuts and bolts. Another great advantage is that the METRINCH profile is available for sockets, ring spanners and socket spanners. In the latter case, the wrench engages at 4 points instead of 2 points as with a normal open-end wrench.