The Maestro Handpiece is now replaced by the new Maestro EX Handpiece. The new Maestro EX features a redesigned piston that is 3.5 times heavier and 20% larger than the previous model, delivering more power than the original. The handpiece knob and barrel body are threaded together to allow adjustment of the overall length from 4" to 4.25". The new Maestro EX requires very little maintenance. Ideal for stippling, texturing, punch dot, light sculpting, hammering, and more. The handlebar or pen-style grip is preferred by many engravers. Made in USA.