Overview: The document discusses reverse circulation drill rods, focusing on their exceptional qualities and specific manufacturing techniques.

Specifications: The drill rods are produced using reverse circulation friction welding, which is available in two variations: Full OD (Outside Diameter) and Upset. These methods enhance the durability and performance of the rods.

Manufacturing Techniques:

• Reverse Circulation Friction Welding Full OD: This technique involves welding the full outside diameter of the rods, ensuring a robust and seamless connection.
• Reverse Circulation Friction Welding Upset: This method involves creating an upset, or thickened section, at the ends of the rods to improve strength and connection integrity.

Contact Information: The company, Collidrill, is located at Viale della Meccanica 1, 02032 Fara in Sabina, Rieti, Italy. For inquiries, they can be reached via email at [email protected] or through their website collidrill.it.