High quality hammer drill bit with 4 cutter X-head design for improved user comfort, reduced vibration and improved hole quality. 4-Flute spiral with maximised flute entry. 4-flute spiral with maximised flute entry increases drilling speed and debris removal. Maximised central core for increased energy transmission. Heavy-duty shank for maximum durability. Heavy-duty shank for maximum durability. DT9417 Specifications Diameter 20 mm Length 540 mm Working Length 400 mm Cutters 4 Pack Quantity 1
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