Universal drill or all-purpose drills are a new trend, ALL drilling tasks united in a drill, especially for smaller diameters. So no separate drills for wood, metal and masonry, but a drill for ALL materials. Universal drills can be similarly loadable like percussion drill, but never so robustly and powerful like hammer drill bits. Please, if necessary, also use the tips for drilling works. >>> Price list
For a long time it seemed impossible to provide a universal drill because the development in the different types of drills had drifted too far apart. There were special drills for steel, other for stainless steel, which in turn would destroy wood drills. Or carbide-tipped masonry drill bits that do not 'bore', but hit the material like a chisel. A cumulative problem especially in the interior construction of houses: here often holes are drilled through various consecutive materials, such as exterior gypsum board, including sheet metal, wood or concrete. At each hole, the mechanic had to then change the drill bit 1-2 times and then set different speeds on the machine for drilling the layers properly! Added to this was the problem that the specialized drill bits on contact with other alien material became quickly dull and useless. For example, bits on contact with stone dust.
Then the attempt for a “universal drill“ or all purpose drill solution was to sharpen the very constant, but rather blunt hard metal plate in the head of a Stone drill so that it could also work in softer materials and also peel shavings out. This occurred only by grinding with diamond tools. The universal drill appeared! Soon it began its triumphant progress in the specialized markets.
Not all all-purpose drills are the same, depending on granularity, composition and ground geometry of sintered carbide tip in the drill head. Wood, plastic and others all are drilled all alike, but some manufacturers shift the focus still on drilling with pinpoint accuracy in the hardest materials such as glass, tile, granite and metals. These drills are sensitive and then wear out faster when drilling in concrete and masonry. And percussion drilling is then also taboo. Other manufacturers prefer a long service life in continuous use in concrete and masonry, and these drills may then also work as an impact drill. When steel is to be drilled thicker than only in sheet thickness the Universal drill is at its limits, while brass, bronze, etc. represent no problem.
FassadenGrün offers a high-quality cassette UB 77777, whose Universal drill bits are recommended for use in all types of walls, including concrete, hardest stone and also for impact drilling. To maintain the suitability of the bit for precise drilling in glass, tile, or metal for as long as possible, it is recommended to use the bit only rarely for percussion drilling into masonry or hard walls. The diamond-ground cutting edges are then less worn, and you have a longer use and enjoyment of this product!