| 摘要 |
An object of the invention is to provide a drill with a fiber core for drilling a fine hole which can securely fix an abrasive grain to a core material, can finish to a predetermined diameter in a relatively easy manner, and can manufacture one having a superfine diameter about some mu m, and a method of manufacturing the same. A drill with a fiber core for drilling a fine hole in accordance with the invention for achieving the object is structured such as to drill a fine hole onto a work, or grind an inner diameter of the drilled fine hole to a predetermined shape, and characterized by bundling ceramics long fibers so as to make a core material, impregnating the core material with a molten synthetic resin so as to harden, and holding an abrasive grain by the synthetic resin. <IMAGE> |
