Drilling Tools, Drilling Equipments, Drill Tool manufacturer / supplier in China, offering Hds Roller Kelly Bushings with 3% Discount, 26inch HDD Hole Reamer Bit for Horizontal Directional Drilling, 8 1/2" 5 Blades PDC Drill Bit and so on.
|Min. Order / Reference FOB Price||1 Piece||US $250/ Piece|
|Production Capacity:||300 Pieces for Each Day|
|Payment Terms:||L/C, T/T, Western Union, Money Gram|
|Logo Printing:||with Logo Printing|
|Type:||Roller Kelly Bushing|
|Certification:||ISO 9001:2008, API|
Roller Kelly Bushings can be classed as two types based on different ways of drive, square drive and pin drive. Also they can be classed as three types based on different style, heavy, medium and light-duty. They are used for 17.1/2 to 49.1/2inch rotary tables. They are designed and manufactured according to API Spec 7K.
applicable size of kelly(in)