We provide service for : - Rock piling tools factories who is producing Double-cut soil drilling bucket, Single-cut clay bucket, Double-cut rock drilling bucket, single-cut rock drilling bucket. - Rotary Drilling Rig factories for rock piling. - Rock piling companies who could weld and repair rotary drilling core barrel by themselves. Technology supporting: - We provide training of welding roller cone cutters to core barrel in the correct way in your plant or workshop. - Your welding workers or technicians can be trained in our factory.Features of C142 series

1	Journal sealed bearing with TCI protection on heel of cones.
2	Bigger cone , TCI covers full cones , longer working life.
3	Shirttail hard enhanced by Tungsten Carbide.
4	C142-537 adopts 15mm chisel TCI , C142-637 adopts 14mm bullet(conical-ball) TCI .
5	C142 series suit for drilling hard & very hard rock hardness more than 100MPa , bigger diameter TC Inserts brings higher wear resistance.