Key for a cylinder lock

摘要: A key, for use with a rotary cylinder lock of the type having rectangular key slot and tumbler pins protruding into one or both wide sides slot, has blade permutations recesses different depths (step values) to receive pins. The are elongated in direction insertion. At least is located so that its associated pin engages recess at end when fully inserted that, after rotation started, movement longitudinal positively limited.