The Brass Adaptor shim is used for parallel shafts fitting into larger hosels. KELU plug adaptor makes sure the shaft can be assemled at the center of the bore. They combine the hosel and shaft perfectly and work well.   Product details: • Material: Brass • Available in .015" and .030" parallel options. • The shims allow .355" iron shaft to be inserted into .370" parallel club heads.     The CORE TECHNOLOGIES KELU has are MIM and CNC, both for the high-end sport components. Metal injection molding (MIM) is a revolutionary technology which integrating Plastic Injection Molding, Polymer chemistry, Powder metallurgy and Metallic materials science. We can develop mold for special customized size/shape or produce by existing mold directly. Tungsten, Brass, Stainless Steel could be chosen as materials for MIM. Computer numerical control (CNC) is the automation of machine tools by means of computers executing pre-programmed sequences of machine control commands. And its applicative materials include Titanium, Tungsten, Aluminum, Brass, Stainless Steel, Zinc and so on. Main Markets： North Americam, Europe, Australia, Asia