Abstract: A stylus changing apparatus for use in automatically controlled drafting machines utilizing a plurality of styli comprising a fixed magazine defining a plurality of compartments for receiving styli not instantaneously in use and a displaceable carriage for the stylus in use, the carriage also defining a compartment for the stylus, wherein each compartment (1') of the magazine (1) and the chamber (4') of the stylus carriage (4) each include a stylus holding device, the holding devices in the compartments (1', 4') being identical and being formed by the rear wall (6) of the compartment (1', 4') defining a fixed stop for the stylus (2) and by two resilient clips (3, 5) the free ends of which project into the compartment (1, 1') said free ends each having an inwardly directed projection on barb formed thereon, said projections abutting against the stylus (2) located in the compartment (1, 1') and resisting in use, motion of said stylus (2) away from said rear wall (6) whereby transfer of a stylus (2) between the