| 摘要 |
PURPOSE:To provide a polishing tool of an inner hole of a tubing capable of carrying out finish polishing of the inner hole of the tubing made of glass or ceramics in a high precision without damaging the surface of the inner hole in a short period of time. CONSTITUTION:On a large diametrical side of a polishing head shaft 11 of an inner hole 14c of a tool spindle 14, a presser spring 15 and a regulating tool 16 are arranged, and when the regulating tool 16 is moved in the direction of the polishing head shaft 11 by a screw 17, the presser spring 15 applies pressure on the polishing head shaft 11. |
