Hughes Christensen Drill Bit Catalog

TRICONE BIT OPTIONAL FEATURES
Center Jet (C prefix)
A fourth jet may be positioned
in the center of the
bit. Center jets primarily are
used to prevent bit balling
and the associated reduction
in penetration rate.
Center jets are available in
bit sizes 7 7/8” and larger.
Vortex nozzles are recommended
for most center jet applications. Their unique
design increases inner bit turbulence, essentially
eliminating stagnant areas on bottom.
DX Gauge
Enhancement Package
For directional and highly
abrasive applications,
Hughes Christensen offers
the DX diamond gauge
protection package as an
option. Every third gauge
compact utilizes new DSE
compact technology with a thicker diamond table
and generous chamfer for increased resistance to
breakage.
D Gauge
Enhancement Package
(33% diamond gauge)
For extremely abrasive
applications, a diamond
gauge enhancement
package is recommended.
These premium gauge
protection packages feature Hughes Christensen’s
patented shear cutting diamond gauge inserts.
These inserts are strategically located on the gauge
surface of the cone and are designed to cut and trim
the borehole wall to maintain a full gauge hole.
D1 Gauge Enhancement Package (66 % diamond gauge)
D2 Gauge Enhancement Package (100% diamond gauge)
Diamond Gauge
Trimmers (DT)
For abrasive applications
where gauge rounding is a
problem. Every Gauge
Trimmer is diamond.
Diamond Gauge/
Diamond Trimmers (DDT)
For maximum protection to
the gauge and heel area.
Every Gauge Trimmer is diamond
and every third gauge
compact is DX diamond.
Diamond Enhanced
Wear Pad (DP)
For additional leg protection
in abrasive applications, flatdiamond
compacts can be
added to the leading edge
of the leg pad.
Diamond Shirttail
Compacts (DS)
For additional leg protection
in abrasive applications,
flat diamond compacts can
be inserted on the leg of
the bit.
HUGHES CHRISTENSEN 14