| 摘要 |
<p>Holesaw comprising an arbor (11) with a pilot drill, a bell-shaped sawblade to be attached to a lower threaded portion (13) of the arbor, a pin support (17) having pins (18) to engage the holesaw blade and being axially movable but rotationally locked to the arbor, and a clamping sleeve (20) threaded onto an upper threaded portion (12) of the arbor and concentrically enclosing the pin support, where the clamping sleeve can be screwed down to press against the bell top (14) of the sawblade.</p> |
