Steel tooth tricone bits for soft to medium formation drilling reliable bearing system all surface and teeth are hard enhaced 114-117, 127 soft formation tooth bits the 114-117 bits are used to drill low-compressive strength, soft formation. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear. On the softest bits type this hard facing completely covers the bit teeth. 127 medium-hard formation milled tooth bits the 127 bits are used to drill high-compressive strength, medium hard formations. Short projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied.
