Hole Opener
The Fixed Diameter Hole Opener is made of tough heat treated alloy steel for maximum strength. Hole opener Cutter arms are equipped with removable cutters, which were hardfaced and welded on the hole opener body. Cutters are available in three types: type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation. The hole openers have three or six jet tubes with replaceable nozzles, so that jet streams quickly clean the enlarged hole.
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Overview
Types of cutters (SM,MH,XH)
Cutters are available in three types: type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation.
| Std opening hole | Nb | Pilot hole(mini) | Fishing Neck | Bottom conn. | Bore | Overall Length | Weight with cutters (kg)approx. | ||
| of cutters | Length | Dia. | Top conn. | ||||||
| 12 1/4'' | 3 | 8-1/2'' | 18'' | 8'' | 6-5/8REG | 4-1/2REG | 1-1/2'' | 60'' | 360 |
| 17 1/2″ | 3 | 10-1/2″ | 18〞 | 9-1/2〞 | 7-5/8REG | 7-5/8REG | 2-1/4〞 | 59〞 | 550 |
| 26〞 | 3 | 17-1/2″ | 18〞 | 10〞 | 7-5/8REG | 7-5/8REG | 3〞 | 69〞 | 900 |
| 36〞 | 3 | 24″ | 20〞 | 9〞 | 7-5/8REG | 7-5/8REG | 3〞 | 75〞 | 1000 |
| 4 | 18″ | 43〞 | 10〞 | 7-5/8REG | 7-5/8REG | 3-1/2〞 | 104〞 | 1540 | |
| * Other sizes available under customer needs. | |||||||||
Packing & Loading picture:
