摘要 |
<p>An adaptor (3) for an electrical drive motor (4) is fixed to a spade shaft-type holder (1, 2). The motor drive shaft (5) can be coupled with the supports (6, 7) of at least two diametrically arranged cutting blades (8). The drive motor can be that of an electrical hand drill (4), the chuck (5) being coupled with the spigot (6) of the cutting blade carrier (7).</p> |