| 摘要 |
<p>The handle is a standard wooden stick as used for a brush or a spade. A sleeve, ideally made of aluminum is pushed into the lower end of the stick. The sleeve can have slots and can be secured by spreading. A thin element made of a soft metal is accommodated within the sleeve exceeding this at the outer end. The pointed metal element is moved into a specific angle in relation to the stick by simultaneously bending the sleeve unit.</p> |
