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Product Description
Vigor Drilling, Hole opener manufacturer, is specialized in Hole Opener, it is used to enlarge the diameter of pre-drilled hole or connect with a bit on front end to drill pilot hole and enlarge hole simultaneously.
Our AISI 4145H Hole Opener with fully heat-treated alloy steel, is available with carbide-milled teeth and insert cutters. Hole Opener's arms and cutters are hardfaced for protection in three different designs for varying conditions and rock formations.The design of the hole opener allows for field-changing cutters.
China Vigor, Hole opener manufacturer, will be glad to provide the best tools for you.
| Hole open diameter | Qtyof cutters | Min. Pilothole | Fishing neck diameter | ID | Top connection (pin) | Bottom connection (Box) | Overall length |
| 121/4" | 3 | 81/2" | 8" | 11/2" | 65/8REG | 65/8REG | 55" |
| 16 | 3 | 10" | 91/2" | 21/4" | 75/8REG | 65/8REG | 59" |
| 171/2" | 3 | 10" | 91/2" | 21/4" | 75/8REG | 65/8REG | 59" |
| 22" | 3 | 123/4" | 91/2" | 21/3" | 75/8REG | 65/8REG | 69" |
| 23" | 3 | 123/4" | 91/2" | 3" | 75/8REG | 65/8REG | 69" |
| 24" | 3 | 14" | 10" | 3" | 75/8REG | 75/8REG | 69" |
| 26" | 3 | 171/2" | 10" | 3" | 75/8REG | 75/8REG | 69" |
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