Brand:kingdream
Quantity:1
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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.
