Place of origin:hebei, china (mainland)
Brand name: kingdream
Model number: iadc 127
Type: drill bit
Machine type: drilling equipment
Certification: api
Material: cr-mn alloy
Processing type: forging
Use: coal mining
Commodity: roller cone bits milled tooth
Bit size: 12 1/4" 311mm
Reg: 6 5/8"reg
Color: blue, according to customers demand
Formation: soft formation
Market: all over the world
Price: competition price
Delivery time: delivery on time
Iadc codes: wide size code
Packing:54.33.33cm
Dimensions: 311mm
Weight:90 kg