LUHAI provides square Kelly and hexagonal Kelly which is manufactured strictly according to API Spec7-1 and SY/T6509-2000 standard.


Description & Specification:

Size/Размер: full range from 2-1/2 to 6
Material/Материал: AISI 4145H alloy steel 
Standard/Стандарт: API SPEC 7-1,SY/T6509-2000.