Joysun Alumina surface conditioning eyelet stars are designed for compatibility with die grinders, straight shaft grinders and electric drills thanks to their steel flex shaft mandrels. The eyelet stars are flexible and feature an open structure for excellent surface conditioning effects. Their unique shape and construction allows the operator to quickly change the cleaning action in hard to reach areas. The eyelet conditioners produce high stock removal effects and an extended working life for uniform performance on carbon steel, stainless steel, high temperature alloy, plastic, rubber and wood.