To provide an operating implement which enables the operation of switching an attached metal fitting for a window to be smoothly performed by properly maintaining the connecting state of a switching knob to a connecting pin.

The connecting pin 26 provided in the attached metal fitting 4 for the window is equipped with an engaging shank 35 and a flange 36. The operating implement 10 connected to the connecting pin 26 comprises a knob arm 40, a knob body 41, a lock body 42, etc. The knob arm 40 is provided with a connecting hole 48 which is insertion-engaged with the engaging shank 35. A plate surface of the lock body 42 is provided with a lock hole 61 for being engaged with the flange 36. The lock body 42 can be shifted in its position between a locking attitude for engaging the lock hole 61 with the flange 36 and an unlocking attitude for disengaging the lock hole 61 from the flange 36, and locking is urged by a lock spring 43. In a state in which the connecting hole 48 is engaged with the engaging shank 35, the lock hole 61 of the lock body 42 is engaged with the flange 36, so as to lock-hold the operating implement 10 in an unshaky state.