Friction welding DTH drill rods use stable quality seamless steel, using time is more than the electrowelding DTH drill rod, and greatly improved strength after heat treatment.

Our SD drill rods produced by CNC machine, and choose high grade steel material thru heat treatment of the steel tube & thread joint to improve the steel material streagth and insurance the thread wear life.

DTH drill rods are all connected with friction welder welding, solid and reliable, quality assurance. Widely used in various DTH drill rigs and cars.

Length choose: 1m, 1.5m, 2m, 3m, 4.5m, 6m, 7m, 8m, 9m, 11m, 12m or based on yours.

Thread Connection: B.S. whitworth, API REG, API IF, API NC, FH, XH.

Steel grade: 40Cr, DZ40, R780, J55, E75, G105.

Steel process: Heat treated.

Produce by: Friction welded.