Designed for the Air Do X Engraving System, the SmartPro H2 handpiece provides powerful, high-speed engraving thanks to its durable construction and optimized airflow. This sturdy, heavy, handpiece has a broader body and utilizes a heavier spring and piston for applying the extra pressure and control needed for engraving on hard metals. This handpiece ships with a 1.1 meter (approximately 42" long) hose, two 13g pistons, two 6.5g pistons, and two hard springs to support deeper engraving applications. Collets are sized at 3.5mm and 2.5mm for holding a wide variety of gravers.  One-year manufacturer's warranty.  Made in Thailand. .