This bit is for drilling wells with 4 inch casing. The actual dimensions on this bit are 5.75", and it can fit inside of 6" schedule 20 PVC pipe.

We experimented with dozens upon dozens of different styles of bits over the years, and settled on this design. The hollow center reduces drag on the motor, and also gives clay no place to ball up while drilling. All our bits use case hardened steel and a very high quality carbide hard surfacing in a nickel matrix for durability. In most soils, you will only need a single bit to drill a well.

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