Offer for D=31 Hollow Drill Bit
1.16 years professional experience 2.first level 3.Excellent quality 4.Different models
Specification:ø9.8 ~ø31mm Hollow drill, applicable to rail drilling machine.ø40~ø108mm Diamond drill, applicable for rail drilling machine.ø41 × 200mm Concrete sleeper rail drilling.ø39 × 200mm Twist drill, applicable to turnout nylon sleeve borehole.
Offer for D=31 Hollow Drill Bit