KAT DRILLING
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Extension rods are manufactured using high-quality hollow drill steels. Available in two primary shapes—round and hexagonal—these rods feature a central "flushing hole" designed for the transmission of water or air during the drilling process. The integrated threads facilitate secure connections with couplings, shanks, or drill bits.
| 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 |
| R25 Series - 1" Hex (25mm) | ||||
| HEX 25 | 610 | 2' | R25 | R25 |
| HEX 25 | 1525 | 5' | R25 | R25 |
| HEX 25 | 3050 | 10' | R25 | R25 |
| R28 Series - 1-1/8" Hex (28mm) | ||||
| HEX 28 | 610 | 2' | R28 | R28 |
| HEX 28 | 1830 | 6' | R28 | R28 |
| HEX 28 | 3050 | 10' | R28 | R28 |
