O-K Bit Service, Inc. has been in business since 1973. We offer rock drill bits for the Mining, Water, Geothermal, Oil Field, and HDD industries. We have sizes through 2-15/16 – 36” in inventory ready to ship. We build large diameter hole opener reamers of any size. We currently offer DTH Percussive Hammer and Bits from Mitsubishi, Robit, and RockTech International in all sizes. We ship products domestic and internationally. The best testimony of O-K Bit quality and service is the number of repeat customers we’ve had since the beginning of our business.