| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling tool for a slate plate, preventing chips and dust from scattering in the surroundings, which are generated in drilling a work formed of building material containing harmful material, especially having a corrugated surface shape (or a flat surface shape). SOLUTION: This drilling tool for a slate plate includes: a drill holder 1 removably holding a drill; a bearing part 2 rotatably supporting the drill holder 1; and a cylindrical body 3 having a cylindrical part 31 connected to the bearing part 2, surrounding the periphery of the drill holder 1 and provided with a nozzle 33 formed to deliver dust (d) to the outside, and a soft contact part 34. The cylindrical part 3 has the soft contact part 34 in an opening part of the cylindrical part 31. COPYRIGHT: (C)2008,JPO&INPIT
|
