Steel tooth

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 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 to reduce tooth wear.

Steel tooth