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| Customization: | Available |
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| Warranty: | 6 Months |
| Certification: | ISO 9001:2008 |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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H22 11 degree mining drill rod tapered drill rod
| Angle | 7 /11/12 degree |
| Brand | QSAAA,QSAA,GTIII,G30 |
| Shank size | H22*108mm/ H25*108mm/H25*159mm. |
| Package | 5 pieces with a small bundle,50 or 100 pieces with a big bundle. |
| Production process | involving multiple processes, such as steel rolling, forging, normalizing,quenching and tempering, etc. |
| Raw material | It is 55SiMnMo ,320*480 large-section continuous casting billet, then rolling into 150*150 square billet after inserting core rod and seamless pipe. |




LUOYANG GUANGTUO ROCK DRILLING GROUP, it was founded in 2010, located in Yiyang county, Luoyang city,Henan province,specializing in producing hollow drill steel,tapered drill rod and safty light. With the past years efforts,it has developed three branches,LUOYANG TUOYAN MACHINERY EQUIPMENT CO.,LTD, specializing in manufacturing thread drill tools including thread rods,bits and miner lamp.


