Product Description

114-117,
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 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.

437
Soft Formation TCI Tricone Bits
The 437 TCI bits are used to drill low compressive strength, very soft formations. TCI bits

maximize

 the use of both conical and chisel tungsten carbide inserts of large diameters and high

projection.

 This cutting structure design, combined with maximum cone offset, result in high bit

penetratione

rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations.