PROBLEM TO BE SOLVED: To provide a medical torque driver which can be subjected to sterilization treatment by an autoclave and is not supposed to be disposable.SOLUTION: A medical torque driver includes at least a grip 101 having a hollow part, a torque control mechanism 102, and a driver main shaft 103. The grip 101 has an opening part at one end. A distal end cover 105 which seals the hollow part and enables the rotation of the driver main shaft 103 is inserted in the opening part of the grip 101. The distal end cover 105 is inserted in the grip 101 with a seal member 106 placed on an outer periphery of a part inserted in the grip 101, and a step part 108 which has an inner diameter greater than the other inserted part 107 and has a tapered cross section on a boundary part is provided on an opening end part of the grip 101.SELECTED DRAWING: Figure 3
