The GRS Maestro EX Handpiece (004-905) is a slim, balanced, and exceptionally smooth pneumatic engraving handpiece designed for professional jewelers, stone setters, and metal engravers. Sharing the same overall length as the original Maestro, the EX features a diameter only 20% larger — yet its piston is over 3.5 times heavier with a longer stroke, delivering significantly more power across a wide range of applications, including stone setting, general metal engraving, texturing, and hammering.
Control remains excellent throughout the full Maestro EX power range. The handpiece uses the GRS QC (Quick Change) Tool Holding system, enabling fast, two-second tool changes. This set includes six Quick Change holders, providing immediate versatility right out of the box.
Compared to the Maestro MX, the Maestro EX is lighter at 3.52 oz. versus 4.96 oz. for the MX, and features a smaller maximum diameter of 18 mm versus 22 mm for the MX. The Maestro EX delivers power comparable to the GRS Magnum handpiece, while the MX exceeds even that level. For professionals seeking a powerful yet lightweight and compact handpiece, the Maestro EX is an ideal choice.
Hand control can be enhanced by adding an optional Airtact Thumb/Finger element (sold separately). The Maestro EX is constructed from heat-treated stainless steel and solid brass for durability and long-term professional use.
Important: This handpiece is not Airtact ready and is not compatible with the GraverMeister machine.
| Part Number | 004-905 |
|---|---|
| Weight | 3.52 oz. (100 g) |
| Overall Length | 4 in. (102 mm) |
| Maximum Diameter | 18 mm |
| Tool Holding System | GRS QC (Quick Change) |
| Construction Materials | Heat-treated stainless steel and solid brass |
| Air Supply | Oil-free compressed air (via compatible GRS system) |
| Airtact Ready | No |
Compatible with the following GRS engraving systems using oil-free compressed air:
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