GEOLOGICAL BORING L.L.C.


Heavy Duty Swivels

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Threads directly onto drill pipe!

  Thread-on feature allows reversing pull-back without jack-knifing
   swivel and centers product in the hole.


  Reliable metal-to-metal seals for long maintenance-free life.


  HIGH CAPACITY triple ball thrust bearings.


  Adjustable STAINLESS STEEL FLUID NOZZLES for flow control.


  Manufactured using heat treated chrome-moly alloy steel.


  Carbide cutting edges ensure proper hole size and slurry mixing.


  Available in 2.5”, 3.25”, 4.0” & 5.0" body diameters (Carbides
  cut hole .5” beyond body diameter).

  Part Number   Diameter (Inches)   Threads
  D454   2.5" (3.0" including carbides)   2 API  I.F. Box
  D453   3.25" (3.75" including carbides)   2-3/8 API Reg Box
  D452   4.0"  (4.5" including carbides)   2-3/8 API Reg Box
  D455   5.0"  (5.5" including carbides)   2-7/8 API  I.F. Box

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Copyright 1999 Geological Boring L.L.C.  All rights reserved.
Revised: March 15, 1999.