The invention relates to an
engraving tool, in particular to a sliding-sleeve multi-head nicking tool comprising a
tool bit, a
tool bit handle, a side hole, an end hole, a fixing ring, a lock rod, a sliding sleeve, a hand shank, a sliding sleeve spring, a
solid spring plate, an eccentric column, a mounting hole, a locking hole, a lock rod spring, a lock rod sheet, a baffle ring and a lock hole cavity, wherein the cylindrical
tool bit handle is arranged at the
tail end of the tool bit and integrates with the tool bit, the side hole is arranged on the side wall of the tool bit, the end hole is arranged on the non-center position at the end head of the tool bit
handle, the mounting hole is a longitudinal
blind hole arranged on the end surface of one end of the hand shank, which is provided with the baffle ring, the lock hole cavity is a transverse
blind hole arranged on the side wall of the hand shank, the axial leads of the mounting hole and the lock hole cavity are perpendicularly crossed, the lock rod is arranged in the lock hole cavity, the inclined plane end of the lock rod extends out of the center of the fixing ring, and the sliding sleeve is sleeved on the hand shank to form a movable fit with the hand shank.