A work tool (100, 101) configured to perform an operation on a workpiece by driving a tool accessory, the work tool comprising a motor having an output shaft, the output shaft being rotatable around a first axis, a spindle having a tool mounting part and configured to reciprocally rotate within a prescribed angle range around a second axis by power of the motor and thereby oscillate the tool accessory mounted to the tool mounting part within an oscillation plane, the tool mounting part being configured such that the tool accessory is removably mounted thereto, the second axis being parallel to the first axis, the oscillation plane being orthogonal to the second axis, and an elongate housing in which the motor and the spindle are housed, wherein when a longitudinal direction of the housing is defined as a front-rear direction, the housing includes a front housing part, and a rear housing part connected to a rear end portion of the front housing part and extending rearward, the front housing part includes a first contact part, the first contact part having at least one first contact surface, the at least one first contact surface extending in a direction crossing the oscillation plane, the rear housing part includes a second contact part, the second contact part having at least one second contact surface, the at least one second contact surface extending in the direction crossing the oscillation plane, the first and second contact parts (387 and 394) are connected together in a state in which the at least one first contact surface and the at least one second contact surface are held in contact with each other, the front housing part includes a spindle housing part in which the spindle is housed, a motor housing part disposed behind the spindle housing part and housing the motor, and the first contact part extending rearward from a rear end of the motor housing part, and the spindle housing part, the motor housing part and the first contact part are integrally formed. a motor having an output shaft, the output shaft being rotatable around a first axis, a spindle having a tool mounting part and configured to reciprocally rotate within a prescribed angle range around a second axis by power of the motor and thereby oscillate the tool accessory mounted to the tool mounting part within an oscillation plane, the tool mounting part being configured such that the tool accessory is removably mounted thereto, the second axis being parallel to the first axis, the oscillation plane being orthogonal to the second axis, and an elongate housing in which the motor and the spindle are housed, wherein when a longitudinal direction of the housing is defined as a front-rear direction, the housing includes a front housing part, and a rear housing part connected to a rear end portion of the front housing part and extending rearward, a front housing part, and a rear housing part connected to a rear end portion of the front housing part and extending rearward, the front housing part includes a first contact part, the first contact part having at least one first contact surface, the at least one first contact surface extending in a direction crossing the oscillation plane, the rear housing part includes a second contact part, the second contact part having at least one second contact surface, the at least one second contact surface extending in the direction crossing the oscillation plane, the first and second contact parts (387 and 394) are connected together in a state in which the at least one first contact surface and the at least one second contact surface are held in contact with each other, the front housing part includes a spindle housing part in which the spindle is housed, a motor housing part disposed behind the spindle housing part and housing the motor, and the first contact part extending rearward from a rear end of the motor housing part, and a spindle housing part in which the spindle is housed, a motor housing part disposed behind the spindle housing part and housing the motor, and the first contact part extending rearward from a rear end of the motor housing part, and the spindle housing part, the motor housing part and the first contact part are integrally formed.