An edged tool with a protection cover in which the protection cover for protectinga blade body can be handled easily with one hand without requiring a separate memberfor locking the protection cover to a handle body, and the blade body can be heldin exposed state and covered state. A knife for operation as an edged tool witha protection cover is equipped with a grip portion formed to hold the handle bodywith one hand, and a supporting portion coupled with the grip portion integrallyand supporting the protection cover slidably on the outer circumference. Aprotrusion is formed on the outer circumference of the supporting portion. Theprotection cover is equipped with a pair of locking portions engaging with theprotrusion elastically when the protection cover is arranged selectively atthe covered position or the exposed position.
