1. A cover for use in combination with a label and a portable tool including a motive power section, a mechanical section driven by the motive power section, and an outer frame covering at least the motive power section and the mechanical section, the outer frame having an outer peripheral surface on which the label is mountable, the cover being made from a light transmissive material and removably disposed to the outer frame for protectingly covering an entirety of the label and at least a part of the outer frame.