Pneumatic Rock Drill Bit

The product description:We should try our best to choose the drill rods which have many advantages such as proper section,Website:http://www.qianruidrill.com, lighter weight, shorter length, good rigidity and long life with meeting the requirements of drill hole. For rock drilling with drill rod in person’s hands, H22 and H25 drill rods should be chose which are hexagonal drill rods with taped connection, and the size of the tail of drill rod is 108mmxH22, the material is 55SiMnMn, 95CrMo.etc; For rock drilling of drifting, we choose the drill rods such as the drill rods with hexagonal cross s
Pneumatic Rock Drill Bit