Working machine

A power tool, comprising:

• a prime mover;
• an output shaft that extends along a first direction and retains a tip tool and is driven by the prime mover;
• a support member that supports the output shaft to be drivable;
• a gear that rotates around an axis extending in a second direction crossing the first direction and transmits a power of the prime mover to the output shaft;
• and
• a gear cover that accommodates the gear and the support member, wherein
• inside the gear cover, a lubricant retention portion capable of retaining a lubricant is arranged at a side of the support member, and
• the lubricant retention portion is partitioned from a gear accommodation portion that accommodates a gear by a wall extending in a direction intersecting an extending direction of the output shaft in the gear cover,
• wherein the lubricant retention portion has a filling portion having a container shape for the lubricant to be capable of being filled in, and the filling portion and the support member are covered by the gear cover on both sides in the second direction, and
• wherein the gear is arranged on one side in the second direction with respect to the output shaft, the filling portion is arranged inside the gear cover on the one side in the second direction with respect to the support member, and a guide surface is arranged which guides the lubricant to move from the filling portion toward the support member by driving the prime mover within the gear cover.