| 摘要 |
A file comprises a handle and a tool connected to the handle. The tool comprises a body and a sleeve encompassing the body. The sleeve is formed of grinding material and includes an exterior grinding surface. Portions of the sleeve are disposed in recessed portions of the body and are fixed therein by tongue portions of the body which are deformed against the sleeve. The file is manufactured by positioning circumferential ends of the sleeve in a longitudinal recess on opposite sides of a ridge extending outwardly from the recess. The tongue portions extend from the ridge and overlie the recess. The tongues are deformed toward the recess and against the sleeve. |
