The Chicago Pneumatic 1/4" Pneumatic Air Die Grinder CP9110QB is a high-quality tool designed for precision grinding tasks. With a maximum working pressure of 90 psi and a 1/4" wheel diameter, this die grinder offers efficient and accurate performance. The long shaft allows for easy access to tight spaces, while the red color and model name make it easily recognizable. This rotary/circular action grinder is a reliable and durable option for various workshop and home projects.