The Largest Russian Manufacturer of Rock Bits
793 Style
The 793 style of Three Cone Rock bits is designed for a multitude of drilling applications including: Water Well production (WW),  Geotech (GR) and a variety of other industrial uses.

The 793 style of Three Cone Rock bits has Fluid Jet circulation. Drilling fluid is delivered to the bottom of the drill hole through Jet Nozzles which are located between the bit legs and also cools the bearing structure, as shown in the picture. Interchangeable Nozzles are available in standard sizes from " to ".

These bits are designed to withstand both radial and axial loading. Radial loads are carried by the Open Bearing structure(see details on page Bearing structures): Roller Ball Friction Roller or Roller Ball Friction Roller Friction. The axial load is distributed over the hard surfaced load areas of the Journal. Rollers and Balls are made of vacuum-arc and electro-slag re-melted steel.

The cutting structures of the 793 style of Three Cone Rock bits may have either milled steel teeth, or tungsten carbide inserts

The 793 style of Three Cone Rock bits are available in sizes starting from 6" (152.4mm) to 9" (250.8mm).

Application Legend: C - Construction | E - Environmental | G/O - Gas/ Oil | GR - Geotech 
H/D - Horizontal/ Directional | M - Mining and Mineral Exploration | WW - Water Well

Size IADC Code Bearing Configuration: UralBMT Part No Pin Connection Recommended Applications
inch mm
6 152.4 523 Roller, Ball, Friction, Roller 793BMT06000523M3 API Regular 3 ½ WW, GR
523 793BMT06000523M4
6 155.6 523 Roller, Ball, Friction, Roller 793BMT06125523M3 API Regular 3 ½ WW, GR
523 793BMT06125523M4
158.7 523 Roller, Ball, Friction, Roller 793BMT06250523M3 API Regular 3 ½ WW, GR
523 793BMT06250523M4
6 161.9 523 Roller, Ball, Friction, Roller 793BMT06375523M3 API Regular 3 ½ WW, GR
523 793BMT06375523M4
165.1 523 Roller, Ball, Friction, Roller 793BMT06500523M3 API Regular 3 ½ WW, GR
523 793BMT06500523M4
171.4 112 Roller, Ball, Friction, Roller, Friction 793BMT06750112M API Regular 3 ½ WW, GR
232 793BMT06750232C
523 793BMT06750523M3
523 793BMT06750523M4
543 793BMT06750543C3
543 793BMT06750543C4
7 200 232 Roller, Ball, Friction, Roller, Friction 793BMT07875232C API Regular 4 ½ WW, GR
523 793BMT07875523M3
523 793BMT07875523M4
9 250.8 523 Roller, Ball, Friction, Roller, Friction 793BMT09875523M3 API Regular 6 WW
523 793BMT09875523M4
543 793BMT09875543C3
543 793BMT09875543C4

Application Legend: C - Construction | E - Environmental | G/O - Gas/ Oil | GR - Geotech 
H/D - Horizontal/ Directional | M - Mining and Mineral Exploration | WW - Water Well

Special sizes are also available upon request. Please contact us

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