| 摘要 |
An attachment for a percussive tool including at least one substantially circular chisel blade (7) having a plurality of teeth (13) around its circumference and arranged to rotate about an axis substantially perpendicular to the longitudinal axis of the percussive tool. The attachment may be used to form grooves in walls for pipes or cables, or removing filler to gain access to pipes and cables which have already been installed, or to remove mortar from brickwork. |
