Brand:Nitoyo -B8817 17pcs extra long ball hex key set *SIZE: 1.3, 1.5 ,2, 2.5, 3, 3.5, 4, 5, 5.5, 6, 7, 8, 10, 12 ,14, 17, 19 mm x17pcs *Hardness: HRS *Material:S2 Steel with Mirror Satin Ball end can have large surface with nuts so it will be more easier to tear off the buts. Non-slip ditch request less torque.
