Profile: Blue Demon offers replaceable blades and rotary drag bits for water well, quarry, seismic, shallow oil and gas and construction applications. We provide auger bits for vertical and horizontal drilling and directional pilot bits & reamers for horizontal boring. Our replaceable blade bits are effective and efficient all-purpose, blade-type bits for short hole, exploration, slim hole, blast hole and water well drilling. We also provide a complete assembly that consists of a tool joint connector, an optional reaming stabilizer, a locking bowl, a bit shank and a set of replaceable bit blades.