6 x 7 , 8 x 9 , 10 x 11 , 12 x 13 , 14 x 15 ,16 x 17 , 18 x 19 , 20 x 22 , 21 x 23 ,24 x 27 , 25 x 28 , 30 x 32
European slimline type
15° open ended angle
chrome vanadium alloy steel
Chrome plated
Metric size - DIN3110