Drill Pipe
Product Description
Kellies are the driving section of whole drill stem. Kellies are available with square kelly and hexagonal Kelly. Manufactured strictly from API Spec7-1 standard. Over the years, by adhering to its tenet that is encouraging all people, absorbing all thinks, collecting all contributions and creating all achievements, Saigao has developed so quickly to make growing economic growing gains year by year through expanding scale and extending production line. Saigao is playing a leading role in the same industry and steps into Top 100 Mechanical Enterprises in Shandong Province and Large-scale Enterprises in Dezhou. If you have any interest, welcome to contact with us!
Technical Data Sheet
Size | Length in | Upper box connection | Lower pin connection | I. D. | Driving section | |||||||
mm | in | Type(LH) | O. D. | Thread | O. D. | Cross flat | For square kelly | Cross corner for hexa kelly | ||||
Std | optional | Std | optional | |||||||||
63.5 | 2 1/2 | 12.19 | 6 5/8REG | 4 1/2REG | 196.8 | 146.0 | NC26 | 85.7 | 31.8 | 63.5 | 83.3 | |
76.2 | 3 | 12.19 | 6 5/8REG | 4 1/2REG | 196.8 | 146.0 | NC31 | 104.8 | 44.4 | 76.2 | 100.0 | 85.7 |
88.9 | 3 1/2 | 12.19 | 6 5/8REG | 4 1/2REG | 196.8 | 146.0 | NC38 | 120.6 | 57.2 | 88.9 | 115.1 | 100.8 |
108.0 | 4 1/4 | 12.9 | 6 5/8REG | 4 1/2REG | 196.8 | 146.0 | NC46 | 158.8 | 71.4 | 108.0 | 141.3 | 122.2 |
6 5/8REG | 4 1/2REG | 196.8 | 146.0 | NC50 | 161.9 | 71.4 | 108.0 | 141.3 | 122.2 | |||
133.4 | 5 1/4 | 12.9 | 6 5/8REG | | 196.8 | | 5 1/2FH | 177.8 | 82.6 | 133.3 | 175.4 | 151.6 |
6 5/8REG | | 196.8 | | NC56 | 177.8 | 82.6 | 133.3 | 175.4 | 151.6 |