The Tri-Cone Drill Bit is a high-quality drilling tool designed for oil and gas exploration, geothermal energy extraction, and water well drilling. With a 3 3/4 x 7" size, this bit is perfect for deep and challenging drilling projects. Made in the United States, this Tricone model ensures durability and reliability in tough drilling conditions. Whether you are a professional driller or a contractor, this drill bit is a valuable addition to your equipment arsenal. see pictures.