The ends of drill rod are shaped silk buckle by forging,it avoid the fetects which produced by friction welding.The joint of silk buckle has a good seal performance.

The drill rod is used for rock drilling,blasting holes and other drilling works in the quarries,coal mines and other constructions.

1.Steel grade:40Cr 45Cr

2.External diameter:D42 D50 D60 D73 D89

3.Length:0.8m-1.5m.

The length can adjust according to customer's needs.

High machining accuracy,running long life
High strength,accept more bending and torque