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U40HD bullet teeth for pilling are produced by tungsten carbide tips and 42CrMo. U40HD (1010414) for augering and tunnel boring in hard rocks and concrete. It is high impact strenthe and has long service life.
C31HD bullet teeth is designed for drilling and tunnel boring, treching and small rock augers.
If you need any of them or other carbide tips bullet teeth, feel free to contact us by robert@tydrillbits.com.
