The Largest Russian Manufacturer of Rock Bits
794 Style
The 794 style of Three Cone Rock bits is designed for a multitude of drilling applications including: Gas and Oil production (G/O),  Water Well production (WW), Horizontal/ Directional drilling (H/D), Geotech (GR) and a variety of other industrial uses.

The 794 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, as shown in the picture. Interchangeable Nozzles are available in standard sizes from " to ".

The 794 style Three Cone Rock bits have a Sealed Bearing structure(see details on page Bearing structures): Friction Ball Friction Friction, Roller Ball Friction Roller Friction. This allows the bit to run at higher speeds, and lower torque for longer bit life. Elements of the bearing structure are made of vacuum-arc and electro-slag re-melted steel.

The cutting structures of the 794 style of Three Cone Rock bits may has either tungsten carbide inserts

The 794 style of Three Cone Rock bits are available in sizes starting from 4¾" (120.6mm) to 11" (295.3mm).

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
120.6 527 Friction, Ball, Friction, Friction 794BMT04750527M3 API Regular 2 H/D
527 794BMT04750527M4
547 794BMT04750547C3
547 794BMT04750547C4
4 123.8 527 Friction, Ball, Friction, Friction 794BMT04875527M3 API Regular 2 H/D
527 794BMT04875527M4
547 794BMT04875547C3
547 794BMT04875547C4
5 127 527 Friction, Ball, Friction, Friction 794BMT05000527M3 API Regular 2 H/D
527 794BMT05000527M4
547 794BMT05000547C3
547 794BMT05000547C4
5 130.2 527 Friction, Ball, Friction, Friction 794BMT05125527M3 API Regular 2 H/D
527 794BMT05125527M4
547 794BMT05125547C3
547 794BMT05125547C4
133.4 527 Friction, Ball, Friction, Friction 794BMT05250527M3 API Regular 2 H/D
527 794BMT05250527M4
547 794BMT05250547C3
547 794BMT05250547C4
139.7 527 Friction, Ball, Friction, Friction 794BMT05500527M3 API Regular 3 ½ WW, GR, H/D
527 794BMT05500527M4
547 794BMT05500547C3
547 794BMT05500547C4
5 142.9 527 Friction, Ball, Friction, Friction 794BMT05625527M3 API Regular 3 ½ WW, GR, H/D
527 794BMT05625527M4
547 794BMT05625547C3
547 794BMT05625547C4
6 152.4 527 Friction, Ball, Friction, Friction 794BMT06000527M3 API Regular 3 ½ H/D, WW
527 794BMT06000527M4
547 794BMT06000547C3
547 794BMT06000547C4
6 155.6 527 Friction, Ball, Friction, Friction 794BMT06125527M3 API Regular 3 ½ H/D
527 794BMT06125527M4
547 794BMT06125547C3
547 794BMT06125547C4
158.7 527 Friction, Ball, Friction, Friction 794BMT06250527M3 API Regular 3 ½ H/D
527 794BMT06250527M4
547 794BMT06250547C3
547 794BMT06250547C4
6 161.9 527 Friction, Ball, Friction, Friction 794BMT06375527M3 API Regular 3 ½ H/D
527 794BMT06375527M4
547 794BMT06375547C3
547 794BMT06375547C4
165.1 527 Friction, Ball, Friction, Friction 794BMT06500527M3 API Regular 3 ½ G/O, H/D
527 794BMT06500527M4
547 794BMT06500547C3
547 794BMT06500547C4
171.4 527 Friction, Ball, Friction, Friction 794BMT06750527M3 API Regular 3 ½ G/O, H/D
527 794BMT06750527M4
547 794BMT06750547C3
547 794BMT06750547C4
7 200 527 Friction, Ball, Friction, Friction 794BMT07875527M3 API Regular 4 ½ G/O, WW
527 794BMT07875527M4
547 794BMT07875547C3
547 794BMT07875547C4
215.9 527 Friction, Ball, Friction, Friction 794BMT08500527M3 API Regular 4 ½ G/O
547 794BMT08500547C3
9 250.8 527 Roller, Ball, Friction, Roller, Friction 794BMT09875527M3 API Regular 6 G/O, WW
527 794BMT09875527M4
547 794BMT09875547C3
547 794BMT09875547C4
10 269.9 527 Roller, Ball, Friction, Roller, Friction 794BMT10625527M4 API Regular 6 G/O
547 794BMT10625547C4
11 295.3 527 Roller, Ball, Friction, Roller, Friction 794BMT11625527M4 API Regular 6 G/O
547 794BMT11625547C4

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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