What is absolutely great and I would not recognize is serving as the vacuum cleaner connector second handle. Through a small intent through which the drill bit bores into the wall, and an output connected to those same vacuum cleaner connection vacuum cleaner not a hundred percent dust-free drilling is possible, however, the resulting dirt is sucked to an estimated 90 percent and does not fall along the wall to the ground. Class invention obwohls a little unwieldy is (drilling machine connected to power cables and vacuum cleaner hose interfere with work but not negligible).
The operation of the machine itself is well to see through "industry practice" and virtually no guidance. I as a layman who fussed only once years ago with the old 70s drifter my father, certainly had no problems.
I would recommend this drifter anyway good conscience to anyone who buys a little price-conscious. For an easy opportunity artisans like me, this is in any case the ideal drill. Whether it is professional requirements of course I can not judge, but I think professionals employ because in a different league.