PDC drill bit: 

Model：PDC core bit，PDC coreless concave compact bit，anchor bit，multi-wing scraper type compact bit, three-wing non-core type conpact bit 

Application：for mining exploration, geological survey, water conservancy, hydropower, prospecting, water and electricity building and construction industry of road, railway, bridge and building

Size：60mm,65mm,75mm,94mm,113mm,133mm,153mm

Suitable for medium and hard rock, such as: limestone, hard siliceous lime layer, marble, sandstone, schist