KAT DRILLING
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Extension rods are manufactured using high-quality hollow drill steels. We offer two primary shapes: round type and hexagonal type. The integrated hollow hole, commonly referred to as a flushing hole, is essential for transmitting water or air during the drilling process to ensure efficiency and cooling. The precision-engineered threads are designed for seamless connection with couplings, shanks, or drill bits.
| R22 7/8" ROPE THREAD (22mm) X 7/8" HEX (22mm), 4-1/4" SHANK (108mm) | ||||
|---|---|---|---|---|
| Rod Cross Section | Length (L) | Thread | ||
| mm | FT | Left | Right | |
| HEX 22 | 255 | 10" | SHANK (108mm) | R22 |
| HEX 22 | 1000 | 3' 3" | SHANK (108mm) | R22 |
| HEX 22 | 1800 | 5' 11" | SHANK (108mm) | R22 |
| R25 1" ROPE THREAD (25mm) X 7/8" HEX (22mm), 4-1/4" SHANK (108mm) | ||||
|---|---|---|---|---|
| Rod Cross Section | Length (L) | Thread | ||
| HEX 22 | 610 | 2' | SHANK (108mm) | R25 |
| HEX 22 | 1220 | 4' | SHANK (108mm) | R25 |
| HEX 22 | 3050 | 10' | SHANK (108mm) | R25 |
| HEX 22 | 4265 | 14' | SHANK (108mm) | R25 |
