Size |
8/ 3/8" 212.7mm |
Pin shank size |
4 1/2reg |
Bit type |
HJ117 |
IADC Code |
117 |
types of bearing |
jounmal beanngs |
types of sealing |
rubber rings |
Application formation |
Very soft with low compressive strength and high drillability, such as soft shale, clay and salt bed, etc |
Main characteristics of bit(cutting structure) |
Hardfaced gage and all tooth surfaces, and the gage fitted with compacts for enhanced gage protection |
Normal WOB KN/mm (bit dia.) |
0.30~0.90 |
Rotary speed (rpm) |
300~80 |
Payment terms |
L/C, T/T, Western Union |
MOQ |
1 Piece |
Delivery time |
within 7 days |
Packing |
carton, wooden box , steel box or as your requirements |