RP4-200

https://www.jztgpiling.com/PILOT-BIT/RP4-200.html

PILOT BIT

We supply kinds of pilot bits, our factory direct supply, products include RP4-200, RP4H (the holder for PR4-200), Fishtail Bit, etc. Material: 42CrMo, high strength, very good quality, suitable for drilling in all kinds of foundation piles, for exam...

https://www.jztgpiling.com/PILOT-BIT.html