Diamond Drill Bit for Hydroelectric Reconnaissance and Grouting

Detailed Product Description

this series of diamond drill bit is mostly used in covering layer, scree layer, foundation layer and ferroconcrete where drill bits often fail because of severe wear out of bond and tube. our drill bits are produced with special protection for bond and tube to deal with such conditions. the drill bits can be used up with fast speed and long life, both electroplating and hot press sintering are used for production, bond hardness HRC20-50