double ended ring spanners of size 6x7 size 8x9 size 10x11 size 12x13 size 14x15 siz e 16x17 size 18x19 size 20x22 size 21x23 size 24x26 size 27x32 size 30x34 size 36x41 set cons isting of 13 nos each 1 no make stahlwille hazet snapon stanley holex proto taparia everest j halani or equalant is 2029 1998 warranty period 30 months after the date of delivery double ended ring spanners of size 6x7 size 8x9 size 10x11 size 12x13 size 14x15 siz e