Abstract: An instrument set for operating on the uterus (1) comprising a speculum (5) with an upper spoon (7) and a swivelling lower spoon (8) attached to the upper spoon by a stretching device. A ball forceps (20) is provided for grasping the portio (2). In the upper and lower spoon (7,8) of the speculum recesses (16,17) are provided which ensure the rigid seat of the speculum (5) in the vagina (6). On the speculum (5) an abutment (19) is provided and on the ball forceps (20) a corresponding extension (30, 31) is provided for hooking in the ball forceps (20).