Sumitomos MULTIDrill „SMD“ 12D does not only convince by its perfect qualities of the drill holder, its exchangeable drill tips made from coated carbide provide optimum cutting results. They are globally used on drill holders of up to 8 x D in length. Thus, the MultiDrill „SMD“ 12D outperforms the competition in economic efficiency and application range, especially conventional solid carbide drills. These solid carbide drills have to be trashed or, at best, regrinded when worn down. With the MultiDrill „SMD“, only the drill tip has to be replaced. The presision interface allows time and cost saving, simple replacement of the bore tip, providing highest concentricity and centricity. Thanks to their carbide grades and coatings, the MultiDrill „SMD” drills ensure longer service life and precise consistency of bore diameters, complyinga a narrow tolerance zone. Thanks to minimized wear marks, the cutting forces remain low with very small vibration amplitudes and enhanced tool life as a consequence.
Sumitomo provides tool holders of 1,5 x D, 3 x D, 5 x D und 8 x D in length for these replaceable drill heads. If drilling lengths of more than 12 x D are demanded, Sumitomo offers cost-effective, appropriate standard-drills of up to 40 X D in length.