According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice versa. Usually we are offering 50mm, 60mm, 76mm, 89mm, 95mm, 102mm, 114mm, 127mm, 140mm, 159mm.
Usually the threads are standard API connections, like 2 3/8" API REG thread, 3 1/2" API REG thread or API IF thread, etc. According to customers request, from 1000mm to 6000mm length of pipe are available.
Specification :
1.Reliable working performance
2.Outside Size:60mm,76mm,89mm,
114mm,140mm
3.Thread: API REG, IF, BECO
4.Wall Thickness: 5.5/6.5mm/7.5/8.5mm/10mm
