Abstract: A power tool contains one or more moving parts coated with a lubricant to reduce friction. The lubricant is intended to be sealed within a housing of the power tool. In order to better prevent leakage of the lubricant to the exterior of the housing, the housing and/or a component supported by the housing includes a part exhibiting oil repellency. The oil repellency is preferably imparted at least at a junction of the housing and the component supported by the housing. The oil repellency may be imparted by applying a fluorine-based coating or a nanocoating to the junction. In addition or in the alternative, the oil repellency may be imparted by forming a portion or all of the housing from a resin material containing an oil-repelling component and/or by attaching an oil-repellant component at or proximal to the junction.

Abstract: A power tool contains one or more moving parts coated with a lubricant to reduce friction. The lubricant is intended to be sealed within a housing of the power tool. In order to better prevent leakage of the lubricant to the exterior of the housing, the housing and/or a component supported by the housing includes a part exhibiting oil repellency. The oil repellency is preferably imparted at least at a junction of the housing and the component supported by the housing. The oil repellency may be imparted by applying a fluorine-based coating or a nanocoating to the junction. In addition or in the alternative, the oil repellency may be imparted by forming a portion or all of the housing from a resin material containing an oil-repelling component and/or by attaching an oil-repellant component at or proximal to the junction.