Tired of struggling with cobble in your HDD projects? Our NEW Cobble Boss Extreme is specifically engineered for rapid drilling through cobble, loose rock and gravel in HDD projects.
* Super steerable twin cone design
* Built to last with TCI Cones and sealed bearings
* TCI protection on cones for durability
* Enhanced wear resistance protection to blade
* Manufactured to ISO9001:2015 in Illinois, USA 🇺🇸
* High stock levels
| Name | Diameter inches | Diameter mm | Face shape | Shank or connection | SKU | Add to quote |
|---|---|---|---|---|---|---|
| Cobble Boss Extreme - 5", 127, 2 7/8" API Reg Pin, Twin Cone Cobble Boss, 2 7/8" API Reg Pin | 5" | 127 | Twin Cone Cobble Boss | 2-7/8" API Reg Pin | ITM589001 | |
| Cobble Boss Extreme - 5 1/2", 139.7, 2 7/8" API Reg Pin, Twin Cone Cobble Boss, 2 7/8" API Reg Pin | 5-1/2" | 139.7 | Twin Cone Cobble Boss | 2-7/8" API Reg Pin | ITM589002 | |
| Cobble Boss Extreme - 6 1/2", 165.1, 3 1/2" API Reg Pin, Twin Cone Cobble Boss, 3 1/2" API Reg Pin | 6-1/2" | 165.1 | Twin Cone Cobble Boss | 3-1/2" API Reg Pin | ITM589003 | |
| Diameter (inches) | 5", 5-1/2", 6-1/2" |
|---|---|
| Diameter (mm) | 127, 139.7, 165.1 |
| Shank or connection | 2-7/8" API Reg Pin, 3-1/2" API Reg Pin |
| Face Shape | Twin Cone Cobble Boss |
| Shank / Connection | 2-7/8" API Reg Pin, 3-1/2" API Reg Pin |
