Box spanner width across flats 21 x 23 mm L 185 mm bore diameter 12.5 mm chrome-6O636306
Box spanner width across flats 18 x 19 mm L 160 mm bore diameter 12.5 mm chrome-1Q647175
Box spanner width across flats 8 x 10 mm L 120 mm bore diameter 6.5 mm chrome-pl1Y644595