Percussion tool and cartridge-type oil tank therefor

摘要

A pneumatic hammer, hammer drill or like percussion tool incorporating a cartridge-type oil tank detachably installed in the main body of the tool. The oil tank is made of transparent or semitransparent material and held from outside by a holding plate formed with at least one slit, permitting the user to check the tank from outside for an oil consumption. The oil tank is supported on a seat plate which is detachably mounted on the tool main body and which, when removed, enables the user to inspect or repair the interior with ease.