| 摘要 |
A mortiser tool comprising a drill bit (2), a cutting element (3) mounted around the drill bit and motor means, in which in use the motor means rotates the drill bit independently of the cutting element, in which in use the motor means moves the drill bit in a first reciprocating action, in which the cutting element is axially movable in relation to the drill bit, in which the drill bit is provided with transmission means adapted to axially move the cutting element in a second reciprocating action in use, which second reciprocating action is axially non-synchronous with the first reciprocating action. <IMAGE> |
