Drill Bits for sale

Suitable for special drilling operation in soft to medium soft formations (f =1~5).
● Features
Carbide bits have a simple structure with low operation cost and high drilling efficiency.
● Sizes
Ordinary steel bits: Φ۷۵, Φ۹۴, Φ۱۱۳, Φ۱۳۳, Φ۱۵۳
Plug-in type of casted steel spiral bits:Φ۷۵～Φ۱۵۰ (For special drilling operation of gas drainage boreholes in the coal seam) Large diameter bits for rescue: Φ۳۰۰, Φ۴۵۰, Φ۶۰۰ ( Specially for across roadway and rescue borehole drilling operations).
Drill Bits for sale
website:http://www.xianccteg.com/drill-bits/