... Hammer Drill Bit For Drilling in granite, concrete, stone, masonry, tiles and marble. Match power tools machines: Bosch, AEG Hammer Drill bitsAccording ... and long use life. Match with electrical drill in good condition.For Drilling in granite, concrete, stone, masonry, tiles ... Material;40chrome steel,YG8Ccarbide* Style;hex shank one flute hammer drill bit* Packing; each pc/ PVC bag or plastic hanger ...