Specifications high efficiency diamond core drill

1.6mm to 120mm

2.very fast for drilling

3.Used on angle grinder

4.Vauum brazed tools

high speed diamond drill bit   Our company specialized in producing diffeent kinds of diamond tools Specifications: 1.Diameter:8mm 2.The thread is M14,we also have 6mm  hexagon core drills 3.The new craft---vacuum brazed 4.High effciency,fast speed. 5.Very convenient for evryone to use it. 6.Can drill tile,wall,concrete,marble,granite and so on. 7.Good after sales service   Photos