An electric cultivator (1) may include a switch device (40) having a first operation member (43) and a second operation member (44) for providing an unlock function for preventing unintended starting of the cultivator (1). The switch device (40) may allow starting of a main body portion only when the two operation members are ON-operated according to a correct operation procedure. When the second operation member (44) is turned ON before the first operation member (43) is turned ON according to an erroneous operation procedure, a second engaging portion (44c) of the second operation member (44) does not engage a first engaging portion (43a) of the first operation member (43), so that the switch main body (48) is not turned ON.
