Melco TM18 Metric Box Spanner 18 x 21mm x 150mm (6in) Clamps & Hardware Simple-to-use machine feeds HHO into

Simple-to-use machine feeds HHO into the engine through the vehicle air inlet

Uses standard workshop air to generate a vacuum

Includes UK and European quick connectors

Can be adjusted to operate key retaining or non key retaining

Melco TM18 Metric Box Spanner 18 x 21mm x 150mm (6in) Clamps & Hardware Simple-to-use machine feeds HHO intoDouble ended box spanners are thinner than a socket and are much longer so that they can be used to loosen or tighten bolts and nuts in narrow recesses, meaning that they are often used in plumbing maintenance and automotive repair. This tubular box spanner is made from bright plated steel and able to accommodate a tommy bar. Size 18 x 21mm Length 150mm (6 in)