Tecwerk Allen key width across flats 2.5 mm short 56 x 18 mm4T450258
Tecwerk Allen key width across flats 3 mm long, ball end 126 x 20 mm5B517608
Tecwerk Allen key width across flats 5.5 mm short 85 x 30 mm0V723404
Tecwerk Allen key width across flats 6 mm long, ball end 180 x 32 mm0Y160951