KAT DRILLING
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Extension rods are manufactured using high-grade hollow drill steels. Available in two primary shapes—round and hexagonal—these rods feature a central flushing hole designed for transmitting water or air during the drilling process. The integrated threads facilitate secure connections with couplings, shanks, or drill bits.
| HEX 22 - 7/8" ROPE THREAD (22mm) | ||||
|---|---|---|---|---|
| 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 22 | 1830 | 6' | R22 | R22 |
| HEX 25 - 1" ROPE THREAD (25mm) | ||||
|---|---|---|---|---|
| Rod Cross Section | Length (L) | Thread | ||
| mm | FT | Left | Right | |
| HEX 25 | 610 | 2' | R25 | R25 |
| HEX 25 | 1220 | 4' | R25 | R25 |
| HEX 25 | 1525 | 5' | R25 | R25 |
| HEX 25 | 1830 | 6' | R25 | R25 |
| HEX 25 | 3050 | 10' | R25 | R25 |
| HEX 25 | 3660 | 12' | R25 | R25 |
| HEX 28 - 1-1/8" ROPE THREAD (28mm) | ||||
|---|---|---|---|---|
| Rod Cross Section | Length (L) | Thread | ||
| mm | FT | Left | Right | |
| HEX 28 | 610 | 2' | R28 | R28 |
| HEX 28 | 915 | 3' | R28 | R28 |
| HEX 28 | 1220 | 4' | R28 | R28 |
| HEX 28 | 1525 | 5' | R28 | R28 |
| HEX 28 | 1830 | 6' | R28 | R28 |
