4pcs metal machine knobs adjustable fixing handle m6 female thread 50mm

made of stainless steel, corrosion resistant and wear-resisting, durable to use. adjustable position handle adjustment is mainly used for mechanical operating parts of the location, height, etc. exquisite workmanship, each edge can lock screws accurately , no damage to the screw. this handle is particular for the lever turning angle is limited, owing to lack of space..syi