 | This is our 25mm bit C31HD, it is made by tungsten carbide tips and 42CrMo with forging process, mainly use for hard rock drilling and concrete drilling in mining, trenching and construction. Xi'an Tydrillbits Co.,Ltd supply kinds of carbide bullet teeth for mining, trenching, tunnel boring and road milling jobs. In the past 7 years, our C31HD, C21HD, BGS89, U85, U94, U95, BTK121, BTK122, B47K22H, TS30CX, W4, W5, W6, W7, W8, W1-13, W1-17 etc have walked into many countries and feedback is good. If you are interested in any of them, please feel free to contact us by Lucy@tydrillbits.com. |
