The Astro Pneumatic 1221 1/4" Die Grinder Set includes a composite body 1/4" 90° die grinder, a mini die grinder, and an 8-piece double cut carbide rotary burr set. Designed for precision and control, it features a vibration-reducing composite handle, rib-textured grip, and a lever throttle for feathering control. The compact, lightweight design, front exhaust, and built-in regulator make this set ideal for various grinding tasks.