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Fixedblade® Bitbox stabilizer

The Bitbox Stabilizer replaces the need for static sleeve stabilization, which improves weight transfer when slide drilling using mud motors.

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Fixedblade Bitbox Stabilizer. Drilling Stabilizers for the Oil and Gas industry.

Enhanced Hydrodynamic Design

Simple yet innovative solution that enhances drilling performance, prevents downhole failures and makes tripping easier.

Minimized distance between bit and stabilizer blades

Dome-Shaped Low Friction Blades


Reduce torque, drag & BHA vibration dampening

The Stabilizer Reinvented

The Fixedblade® Bitbox Stabilizer directional drilling tool was designed to address the known shortcomings of drill bit stabilisation. Utilising the Fixedblade hydrodynamic design, created using industry standard computational fluid dynamic modelling. It enables enhanced fluid displacement and near bit stabilization without compromising steerability or torque levels

The Fixedblade® Bitbox Stabilizer was designed to replace the need for static motor sleeve stabilization which improves weight transfer and tool face control when slide drilling. Also suitable for BHA’s with point-the-bit RSS, allowing using short-gauge bits without compromising directional performance and hole quality.

Bitbox Stabilizer Applications

The Bitbox Stabilizer is placed directly above the bit and has three points of contact with the wellbore. It is equally suited for use on either mud motor or RSS applications. The Bitbox Stabilizer improves bit stability, minimizing whirl and spiralling.

On steerable motors the rotating bit box stab replaces the static bearing-housing motor sleeve, reducing friction and improving weight transfer when slide drilling. That minimizes the risk of hanging up, motor stalling and subsequent loss of tool face.

When running with point-the-bit RSS, it allows using regular drill bits with short gauge without compromising hole quality. Similar to other stabilizers from ED-Projects, it has low friction dome-shaped blades. The Bitbox Stabilizer also has superior hydrodynamic properties providing resistance to balling up and packing off.

Bitbox Stabilizer Benefits

  • Improved weight transfer and tool face control when slide drilling
  • Improved bit stability
  • Reduced torque and drag
  • BHA vibration dampening
  • Resistance to balling up and packing off
  • Reduced risk of swab and surge
  • Minimized damage to mud cake while drilling and tripping
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The Bitbox Stabilizer in vertical position

Bitbox Stabilizer Specifications

Hole-Size Gauge-Range Length (m) Weight (kg) ID Fishing Neck Diameter Surface Area (in2) Connection
8 1/2″ 7 7/8″ – 8 1/2″ 0.36 63 2 1/4″” 6 3/4” 75 4 1/2″ IF
12 1/4″ 11 7/8″ – 12 1/4″ 90 90 2 13/16” 8 1/4″ 85 6 5/8″ Reg


  • Tungsten Carbide hardfacing, optional Thermally Stable Polycrystalline (TSP) inserts also available.

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