ISO 3318:2009

Assembly tools for screws and nuts — Double-headed open-ended wrenches, double-headed box wrenches and combination wrenches — Maximum widths of heads

ISO 3318:2009 specifies the maximum outside head dimensions for double-headed open-ended wrenches, double-headed ring wrenches and combination wrenches, identified in ISO 1703 under reference Nos. 1 1 01 02 0, 1 1 01 05 0, 1 1 01 06 0, 1 1 02 03 0, 1 1 02 04 0, 1 1 02 05 0, 1 1 02 06 0.