Threaded cross bits or threaded X bits are usually used for very hard and abrasive rock formation.
SINODRILLS Threaded Cross Bits / X Bits
Threaded cross bits or threaded X bits are usually used for very hard and abrasive rock formation.
Parameters
• Thread size: R25, R28, R32, R38, T38
• Head diameters: 35mm ~ 89mm;
Features
• Alloy buttons are hot mounted into the drill bit, ensuring the bit good accuracy and durability;
• Reliability ensured by premium drill bit materials and premium alloy button;
• Different types designed for different drilling scenarios and rock conditions;
• High speed and drilling efficiency;
• Cost-effective, good performance with reasonable price.
Applications
Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.
|  | Normal skirt: For drilling in very hard and very abrasive compact rock formation. | 
| R25 Thread Corss Bits 
 R25 Thread Cross Bits, Normal Skirt Diameter: 35-51mm | R28 Thread Cross Bits 
 R28 Thread Cross Bits, Normal Skirt Diameter: 35-51mm | 
| R32 Thread Cross Bits 
 R32 Thread Cross Bits, Normal Skirt Diameter: 43-64mm | R38/T38 Thread Cross Bits 
 R38/T38 Thread Cross Bits, Normal Skirt Diameter: 64-76mm |