Jet Sub

3-1/2" Jet Sub
  • These over-the-hammer jet subs will allow large volumes of air to be bypassed above the hammer.
  • This reduces operating pressure and allows better hole cleaning for deep, wet, or soft rock applications.
  • The top ring must be drilled out per the flow chart (see below).
  • Additional rings are available to drill out for different flow characteristics.
  • Must be run pin up.

Jet sub chartUse this changable chart to calculate hole size and air flow

3-1/2" Jet Sub
3-1/2" Jet Sub
Jet Sub 2 7/8 API
2-7/8" Jet Sub
2-3/8" Jet Sub
2-3/8" Jet Sub

Jet Sub w/o Ring
Jet Sub without Ring

Jet sub ring, top
Jet Sub Ring, Top

Jet sub ring, bottom
Jet Sub Ring, Bottom