Device for transmitting a torque, which is produced by a drill, to a drill bit, comprising: ▪ a shank having a first outer conical region, a groove region and a second outer conical region, and longitudinal grooves (37, 38) extending parallel to a longitudinal axis of the shank, and ▪ a tool fitting which has a basic body, an intermediate element and a locking device, wherein - the intermediate element is annular designed with an inner lateral surface, on which inner rotary drivers (64, 65) are arranged, an outer lateral surface, on which outer rotary drivers (66, 67) are arranged, and a base surface connecting the inner lateral surface and outer lateral surface, - the basic body has an inner conical region and a rotary driving region with an annular collar and an annular shoulder, wherein outer rotary driving grooves (53, 54) are arranged in the annular collar, and - the locking device is adjustable parallel to a longitudinal axis of the tool fitting between a receiving position and a locking position, wherein the shank is insertable into the tool fitting in the receiving position and is connected to the tool fitting in the locking position, wherein, in the connected state of the device, the inner rotary drivers (64, 65) of the intermediate element engage in the longitudinal grooves (37, 38) of the shank and the outer rotary drivers (66, 67) of the intermediate element engage in the outer rotary driving grooves (53, 54) of the annular collar, characterized in that lower rotary drivers (71, 72) are arranged on the base surface of the intermediate element and lower rotary driving grooves (55, 56) are arranged in the annular shoulder, wherein, in the connected state of the basic body and the intermediate element, the lower rotary drivers (71, 72) interact with the lower rotary driving grooves (55, 56). ▪ a shank having a first outer conical region, a groove region and a second outer conical region, and longitudinal grooves (37, 38) extending parallel to a longitudinal axis of the shank, and ▪ a tool fitting which has a basic body, an intermediate element and a locking device, wherein - the intermediate element is annular designed with an inner lateral surface, on which inner rotary drivers (64, 65) are arranged, an outer lateral surface, on which outer rotary drivers (66, 67) are arranged, and a base surface connecting the inner lateral surface and outer lateral surface, - the basic body has an inner conical region and a rotary driving region with an annular collar and an annular shoulder, wherein outer rotary driving grooves (53, 54) are arranged in the annular collar, and - the locking device is adjustable parallel to a longitudinal axis of the tool fitting between a receiving position and a locking position, wherein the shank is insertable into the tool fitting in the receiving position and is connected to the tool fitting in the locking position, - the intermediate element is annular designed with an inner lateral surface, on which inner rotary drivers (64, 65) are arranged, an outer lateral surface, on which outer rotary drivers (66, 67) are arranged, and a base surface connecting the inner lateral surface and outer lateral surface, - the basic body has an inner conical region and a rotary driving region with an annular collar and an annular shoulder, wherein outer rotary driving grooves (53, 54) are arranged in the annular collar, and - the locking device is adjustable parallel to a longitudinal axis of the tool fitting between a receiving position and a locking position, wherein the shank is insertable into the tool fitting in the receiving position and is connected to the tool fitting in the locking position, wherein, in the connected state of the device, the inner rotary drivers (64, 65) of the intermediate element engage in the longitudinal grooves (37, 38) of the shank and the outer rotary drivers (66, 67) of the intermediate element engage in the outer rotary driving grooves (53, 54) of the annular collar, characterized in that lower rotary drivers (71, 72) are arranged on the base surface of the intermediate element and lower rotary driving grooves (55, 56) are arranged in the annular shoulder, wherein, in the connected state of the basic body and the intermediate element, the lower rotary drivers (71, 72) interact with the lower rotary driving grooves (55, 56).