Drill steel for Atlas Copco T3

The DS412X278IFX20' drill steel serves as the primary conduit for transmitting impact energy and rotation from the drill hammer to the bit during rock drilling operations. It is engineered to maintain alignment and structural integrity while advancing the borehole in mining and construction applications. This component features a 4 1/2-inch outer diameter and a 2 7/8-inch IF threaded connection, with flats on the box to facilitate secure handling and connection tightening. The total length of the unit is 20 feet.

This drill steel is compatible with the Atlas Copco T3 surface drill rig. It is designed to meet the specific dimensional requirements of this machine to ensure proper torque transmission and thread engagement during operation. The design incorporates a PXB connection type to maintain a stable string assembly under the mechanical stresses encountered during drilling cycles.

Drill steels function as the main transmission link in a drill string, connecting the power source to the cutting tool. They must withstand the combined forces of axial impact, rotational torque, and bending stress. Proper maintenance and regular inspection of the threads and body are required to ensure consistent energy transfer and to prevent disconnection or failure during deep-hole drilling.