| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary cutting device in which operating noise is prevented. <P>SOLUTION: The rotary cutting device 1 includes a motor 4 housed in a body case 2. A tank 23 storing cutting fluid is provided above the body case 2 and a tubular spindle case 61 supported to rotate around an axis is provided inside the body case 2. A spindle 62 with a hole saw 10 being mounted thereon is arranged inside the spindle case 61, wherein the spindle 62 is supported to slide in an axial direction. The rotary cutting device 1 further includes a supply pipe 64 supplying the cutting fluid to the hole saw 10 in the spindle case 61, wherein one end of the supply pipe 64 is communicated to the tank 23 and the other end is inserted into the spindle case 61, and the supply pipe is fixed on the spindle case 61. <P>COPYRIGHT: (C)2012,JPO&INPIT |
