Feature●¡¾SET SCREWS¡¿-The D?profile provides a flat surface for set screws to contact while leaving the outer profile untouched●¡¾EASY TO USE¡¿-Even after heavy usage, it will slide through bearings and mating components with ease●¡¾STRONG AND DURABLE¡¿-Using high?quality stainless steel materials, strong and durable, has a long service life●¡¾MATCH D?BORE¡¿-Many drive components we offer have a matching D?bore so there¡?s no chance of the shaft spinning inside●¡¾SMALL SIZE¡¿-Small size, easy to carry and store, convenient to use and with good performanceDescription