The LiMAR Hard Driver® - High Frequency Impacting Sub is a device that is capable of generating high frequency, bi-directional impact.

The Hard Driver® is generally used where impact vibration in conjunction with an applied push or pull force will assist in the recovery of a stuck fish from within the wellbore.
The direction of the generated force is selected by simply applying weight in the required direction of the impact.

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  • To provide high frequency, bi-directional impact in conjunction with the LiMAR Sling Shot® – Impact Enhancer Sub


  • Available in a range of sizes to suit industry standard Coiled Tubing BHA’s
  • Suitable for high temperature environments
  • Compact design ideal for restricted height applications
  • Simple, robust design ensuring ease of operation for the end user
  • Selected components QPQ treated
  • Hexagonal flats for safe make-up & break-out
  • Connection options to suit customer requirements
  • Option to configure to single direction only
  • Ability to increase mass when configured in single direction mode
  • Corrosion resistant materials
Assembly Part No. Actual OD Make up Length
184-1687-XXX-RX 1.687" 40.00"
184-1750-XXX-RX 1.750" 40.00"
184-2250-XXX-RX 2.250" 46.84"
184-2875-XXX-RX 2.875" 52.56"

XXX - Last 3 digits of part number denotes connection type - Please refer to the connection code data sheet.
For additional sizes or further information please contact sales

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