Brief introduction
Size
12 1/4'' (311.1mm)
Iadc
517
Bearing type
Sealed bearing
Thread connection
6 5/8 reg pin
Wob(kn/mm)
0.35~1.05
Rpm(r/min)
120~50
Make up toqure(kn.M)
46.1~54.2
Weight(kgs/pc)
278
Color
Customized
Packing
Plywood box(free-fumigation)
Industrial standard
Sy/t5164
Moq
1 pc
Payment terms
T/t, western union, and l/c are acceptable
Applications
Soft with low compressive strength and high drillability, such as shale, clay, sandstone and soft limestone, etc.
Note:other size and iadc is avaiable