KK Hole Opener is consists of mandrel, roller legs, cores and nozzles. The mandrel is manufactured by high quality alloy steel. The roller legs are welded on mandrel.
The integral mandrel and roller leg is made by forged steel and have high strength as well as reliability. It can adapt rugged drilling environment.
The roller leg and cone can be assembled together. The different kinds of roller reamer are available to all kinds of the formations which scope is from soft to hard. The replacing of roller leg is not only quick but also easy, and can be completed by hand tool operation on the rig without gas cutting or electric welding.
The borehole can be fully cleaned by the directional muzzle equipped the replaceable nozzles, and the life of the roller will be lengthened. Replacement of nozzle will be quickly and easily.
| Standard details (all size in inch) | Bottom end options | Integral bullnose p/n | |||||||||
| Hole size | Pilot Size | F/N Length | Fishing Neck Dia. | Tong Neck Dia. | ID | Top Pin Conn. | Bit box Conn. | P/N | Plain | Side hill | Sprial |
| 8 1/2 | 5 7/8 | 30 | 6 1/2 | 4 1/2 | 1 | 4 1/2IF | 3 1/2REG | KK8 | KK8A | KK8B | KK8C |
| 12 1/4 | 8 1/2 | 30 | 8 | 6 | 1 | 6 5/8REG | 4 1/2REG | KK12 | KK12A | KK12B | KK12C |
| 16 | 12 1/4 | 36 | 9 1/2 | 8 | 2 1/4 | 7 5/8 REG | 6 5/8REG | KK16 | KK16A | KK16B | KK16C |
| 17 1/2 | 12 1/4 | 36 | 9 1/2 | 8 | 2 1/4 | 7 5/8REG | 6 5/8REG | KK17 | KK17A | KK17B | KK17C |
| Special requirements can be accommodated on request. | |||||||||||
