Output Shaft 1 Material: AISI4140 2 D3/4"xL3", Size also can be varied 3 Finish: Black Oxide 4 Heat Treatment :RC50-55 Output Shaft1.Material:AISI4140,4140,4340and Aluminium, Brass, stainless steel also can be used.2.Craft:Cutting off, CNC machining, drilling holes, heat treatment, black Oxide.3.Finish:heat treatment RC50-55, black Oxide,or detailed coating as per customer's requirement.5. size ...