114-117 Steel Tooth Tricone Bits 
Soft Formation Tooth Bits 
The 114-117 bits are used to drill low-compressive strength, soft formations. 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 bit types this hard facing completely covers the bit teeth. 
127 Steel Tooth Tricone Bits 
Medium-Hard Formation Tooth Bits 
The 127 bits are used to drill high-compressive strength, medium hard foamations. Short projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear.