High quality diamond core drill for stone and concrete processing

Diamond core drill Diamond core drills are mainly used for construction,such as drilling holes in stone and concrete wall. Diamond dusts mesh in its segments,this allows the core bit to drill clean and fast while extracting the material. Detailed description of diamond core drill: 1.High effciency, long life and no breaking of segments. 2.Sizes of adaptor for threaded bit:M14,M16, G1/2",5/8"-11. 3.Applicable for drilling of brick wall,concrete, concrete with steel. 4.Stable