Thread extension drill rods
Detailed Product Description
Extension drill rods:
1.shank dimension: 22mm,25mm,28mm
2.screw thread dimension: 25mm,28mm,32mm,38mm
3.screw thread features: 5-R
4.Length: 1m-4m
Extension drill rods:
1.shank dimension: 22mm,25mm,28mm
2.screw thread dimension: 25mm,28mm,32mm,38mm
3.screw thread features: 5-R
4.Length: 1m-4m