Power tool having lubricant leakage preventing structure

A power tool comprising:

• a housing defining therein a mechanism chamber, a lubricant being inserted in an interior of the mechanical chamber;
• an electric motor accommodated in the housing;
• a speed change mechanism disposed in the mechanism chamber and connected to the motor for converting a rotary motion of the motor;
• and
• a protrusion member protruding to the interior of the mechanism chamber from an exterior of the mechanism chamber, the protrusion member providing a communication passage that has one opening open at a leading end side of the protrusion member and another opening open to the exterior of the mechanical chamber, at least a part of the protrusion member providing the communication passage and being made from a resilient material,
• wherein the protrusion member includes a first passage forming member located on the leading end side of the protrusion member and a second passage forming member located on a base end side of the protrusion member,
• wherein the first passage forming member is formed with a first passage open to the interior of the mechanism chamber through the one opening, the first passage being one part of the communication passage,
• wherein the second passage forming member is formed with a second passage open to the exterior of the mechanism chamber through the another opening and communicating with the first passage, the second passage being another part of the communication passage,
• wherein at least one of the first passage forming member and the second passage forming member is made from the resilient material,
• wherein the second passage forming member is formed independently of the housing,
• wherein the housing is formed with a mounting hole communicating the interior of the mechanism chamber with the exterior of the mechanism chamber, and
• wherein the second passage forming member has a mounted portion mounted on the mounting hole, the mounted portion being formed with an opening of the second passage.