KAT DRILLING
1 / 5
Extension rods are manufactured using high-quality hollow drill steels. They are available in two primary shapes: round and hexagonal. The central hollow hole, known as the flushing hole, is specifically designed to transmit water or air during drilling operations. The integrated threads allow for secure connections between couplings, shanks, and drill bits.
Standard thread configurations include R22, R25, R28, R32, R38, T38, T45, T51, ST58, and T60. We offer a versatile range of lengths from 600mm to 6400mm to suit various drilling requirements.
| Rod Cross Section | Length (L) | Thread | ||
|---|---|---|---|---|
| mm | ft | Left | Right | |
| HEX 22 | 610 | 2' | R22 | R22 |
| HEX 22 | 915 | 3' | R22 | R22 |
| HEX 22 | 1220 | 4' | R22 | R22 |
| HEX 22 | 1525 | 5' | R22 | R22 |
| HEX 25 | 1000 | 3' 3" | R25 | R25 |
| HEX 25 | 1830 | 6' | R25 | R25 |
| HEX 25 | 3050 | 10' | R25 | R25 |
| HEX 28 | 1220 | 4' | R28 | R28 |
| HEX 28 | 3050 | 10' | R28 | R28 |
