CNC drill collar spiral groove milling machine is the specialized cnc machine tool for milling drill collar, use three milling cutters mill drill collar spiral groove at the same time. The main technical specification is as following:

1, Machining diameter: ∮98～∮280㎜;

2, Machining length: ≤12, 000㎜;

3, Spiral groove helical lead: 914㎜～2320㎜