The Milwaukee 4-Cut 25mm drill bit with SDS shank is designed for drilling concrete. This 520mm bit features robust head geometry with optimum four 90 degree symmetry of carbide tip to minimize jamming. 130 degree point angle offers easy spot drilling with pinpoint accuracy. Wear mark on both sides of primary cutter offers diameter accuracy. Deep flute shoulders ensures high volume dust removal for optimum drilling. Bits are shot blasted to provide a smooth surface finish and also to make it more wear resistance.