Integral Drill Rod:

1)Raw materil: 55SiMnMo, 95CrMo.

2)shank size: H22Χ108mm (7/8"Χ4¼").

3)Length under collar:600mm,800mm,1200mm,1800mm,2400mm,2800mm,3500mm.

4)Diameter:29mm.30mm.31mm.32mm.33mm.34mm.35mm.36mm.39mm.40mm.

The products are widely used in coaling,construction,stoning and etc.