Delivery was quick. The metal box is ok. I've used the drill for holes in a steel bell plate as well as one or the other hole to drill in 3-4mm aluminum plates. Most larger than 12mm drilled. Basically I use cutting oil. But the sentence was far enough. I think the drill is not quite as sharp, drilling takes (felt) a little longer. So far I can not tell the wear, and am therefore of the opinion that the purchase has already paid off.
