The traditional Single cone roller bits includes Cone 1 , Cone 2 , Cone 3 , and we also developed the full covered tungsten carbide inserts single cone roller bits to fit more inserts on one cone to get longer working life. Product Specification      

Cone Size	133mm (For building 8 1/2" Tri-cone bit)
Bearing Type	Elastomer or Metal-face Sealed Bearing
Grease Lubrication	Available
Grease Compensation System	Available
Inserts Shape	Chisel

Specification of single cone roller bit

Operating Parameters The single cone roller bits is used for Medium formations, such as medium shale, limestone, medium sandstone, medium formation with harder and abrasive interbeds, etc.