Holte Subs -Well, Reverse Circulation, and Foundation Drilling

Holte subs are machined out of the toughest grades of steel available and heat treated in house to ensure lasting strength and durability.  We stock a wide array of subs standard to the industry and also have the ability to quickly manufacture custom sizes and configurations.

Drilling Adapter Subs
Drill Adapter Sub being machined
Well and Foundation Drilling Adapter Subs

Subs | Sizes & Part Numbers

Subs 
DescriptionPart #
(Pin x Pin) 2-7/8" IF Pin x 2-7/8" IF Pin300001
(Pin x Pin) 2-7/8" API Pin x 2-7/8" IF Pin300002
(Pin x Pin) 2-7/8 IF Pin x 3-1/2" API Pin300003
(Pin x Pin) 3-1/2" API Pin x 3-1/2" API Pin300004
(Pin x Box) 2-7/8" IF Pin x 2-7/8" IF Box300005
(Pin x Box) 2-7/8" IF Pin x 3-1/2" API Box300006
(Pin x Box) 3-1/2" API Pin x 2-7/8" IF Box300007
(Pin x Box) 3-1/2" API Pin x 3-1/2" API Box300008
(Box x Box) 2-7/8" IF Box x 2-7/8" IF Box300009
(Box x Box) 2-7/8" IF Box x 3-1/2" API Box300010
(Box x Box) 2-7/8" IF Box x 4-1/2" API Box300011
(Box x Box) 3-1/2" API Box x 2-7/8" API Box300012
(Box x Box) 3-1/2" API Box x 3-1/2" API Box300013
(Box x Box) 3-1/2" API Box x 4-1/2" API Box300014
Crossover Sub 7"RC CSR Box x 6-5/8" API Reg. Box with 3" Wide x 9" Long Slots300015
Sub Adapter from 4-1/2" RC Box x 3-1/2" API Pin300016
4-1/2" CSR Pin x 7" CSR Pin Sub Adapter300017
7" CSR Pin x 7" CSR Sub Adapter300018
Stabilizers310015
Bit Stabilizers310016
Air Needle/Center tube (Small)100956
Air Needle/ Center Tube (Large)100957