High-quality, yet affordable device. But the offered as a set with the machine hole drill assortment "30-piece X-Line Set" seduced to buy the sets, because the machine has a 6-kant recording (after which the offer will be specially noted) and you therefore only drill can use with 6-Kantschhaft (hurray the drill does not slip through more! in Bohfutter). In the description of the drill-range but denied that the products offered in the set do not match! The disappointment is great: because in the drill set are exclusively drills with cylindrical shank! Particularly annoying: the fact that the slippage of the drill is impossible by the 6-square shaft, was for me entscheident for buying - boring machines (also from Bosch) with keyless chuck that the drill is not tight enough clamp (slip) and drills with cylindrical shank I already have enough. Hanns Hübner