Extension Rods / MM Rods
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Top hammer drilling tools
This extension rod is made with a large diameter. It features excellent holing performance and can be used with large hydraulic drilling jumbo. That’s why this drilling rod is applicable for underground mining and infrastructure construction.
Extension Rod | L | D | Thread | Product Code | Weight Kg | ||
mm | Foot | mm | Inch | ||||
![]() | 915 | 3 | 32 | 1 1/4 | R32 | 280-3209-5454 | 4.8 |
1220 | 4 | 32 | 1 1/4 | R32 | 280-3212-5454 | 6.5 | |
![]() | 915 | 3 | 32 | 1 1/4 | R32 | 290-3209-5454 | 5.5 |
1220 | 4 | 32 | 1 1/4 | R32 | 290-3212-5454 | 7.3 | |
1525 | 5 | 32 | 1 1/4 | R32 | 290-3215-5454 | 9 | |
1830 | 6 | 32 | 1 1/4 | R32 | 290-3218-5454 | 10.5 | |
1220 | 4 | 46 | 1 3/4 | R32 | 200-4612-5454 | 10 | |
1525 | 5 | 46 | 1 3/4 | R32 | 200-4615-5454 | 12.5 | |
1830 | 6 | 46 | 1 3/4 | R32 | 200-4618-5454 | 14.2 |
Extension Rod | L | D | Thread | Product Code | Weight Kg | ||
mm | Foot | mm | Inch | ||||
1220 | 4 | 39 | 1 1/2 | T38 | 280-3912-7676 | 10 | |
1220 | 5 | 39 | 1 1/2 | T38 | 280-3915-7676 | 12.4 | |
1525 | 6 | 39 | 1 1/2 | T38 | 280-3918-7676 | 14.9 |
Extension Rod | L | D | Thread | Product Code | Weight Kg | ||
mm | Foot | mm | Inch | ||||
1525 | 5 | 46 | 1 3/4 | T45 | 280-4615-7777 | 16.2 | |
1838 | 6 | 46 | 1 3/4 | T45 | 280-4618-7777 | 19.5 |
Extension Rod | L | D | Thread | Product Code | Weight Kg | ||
mm | Foot | mm | Inch | ||||
1830 | 6 | 52 | 2 | T51 | 280-5218-7878 | 25.3 |
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