| 摘要 |
<p>An accessory (1) for use in a machining or other working operation, comprising a body (2) having respective first and second opposed ends and a generally hollow interior portion (2) intermediate those ends. The first end of the body (2) has an aperture (3) therein defined by a relatively flexible portion 4 and arranged to surround an area of a workpiece to be machined or otherwise worked by a tool (10) in sealing engagement with the workpiece and the second end includes an opening for passage therethrough and into the generally hollow interior body portion of a tool (10), the opening being at least partially closed by sealing means (5), preferably in the form of a bristle-type seal. The body 2 may include a hole to suck away detritus. The sucking device may consist of a motor and a rechargeable battery 21, a detritus holder 22, and a filter and vent 23 at an end of device 20. <IMAGE></p> |
