Set of double control cylinders for a lock, each cylinder for a lock comprising: - a statoric body longitudinally having a cylindrical cavity which extends along an axis from a first longitudinal end to a second longitudinal end of the statoric body; - an operating cam of the lock rotatable about said axis; - a cylindrical bush positioned coaxially in said cylindrical cavity and rotatable on itself integrally with said cam; - at least a first electromechanical control device for said cam associated with a first handle, said first control device comprising: a shaft configured to be longitudinally engageable by said first end in said cylindrical cavity for a stretch that does not exceed the medium plane of the cam orthogonal to said axis; a connection element for connecting said first handle to said cam, engageable in at least a first housing provided in said bush on the side of said medium plane facing said first end; and translational operating means for translating said connection element along said shaft for its engagement in at least said first housing; said bush has having a second engagement housing that extends from the side of said medium plane facing said second end of said cylindrical cavity of said statoric body, said second engagement housing having a distance from said second end equal to the distance of said first engagement housing from said first end, said first and second engagement housing (54, 57) having the same shape coupling with that of said connection element; characterised in that all said cylinders have a statoric body of different length and a bush of different length adapted to provide, for all said cylinders, a same distance between said second engagement housing and said second end equal to the same distance between said first engagement housing and said first end. - a statoric body longitudinally having a cylindrical cavity which extends along an axis from a first longitudinal end to a second longitudinal end of the statoric body; - an operating cam of the lock rotatable about said axis; - a cylindrical bush positioned coaxially in said cylindrical cavity and rotatable on itself integrally with said cam; - at least a first electromechanical control device for said cam associated with a first handle, said first control device comprising: a shaft configured to be longitudinally engageable by said first end in said cylindrical cavity for a stretch that does not exceed the medium plane of the cam orthogonal to said axis; a connection element for connecting said first handle to said cam, engageable in at least a first housing provided in said bush on the side of said medium plane facing said first end; and translational operating means for translating said connection element along said shaft for its engagement in at least said first housing; said bush has having a second engagement housing that extends from the side of said medium plane facing said second end of said cylindrical cavity of said statoric body, said second engagement housing having a distance from said second end equal to the distance of said first engagement housing from said first end, said first and second engagement housing (54, 57) having the same shape coupling with that of said connection element;