HH-G02 Compact Pneumatic Engraving Machine | Portable Bench-Top with Foot Pedal
A compact bench-top pneumatic engraving machine designed for jewelry workshops. The HH-G02 combines 400–8000 RPM handpiece speed, 0–45 PSI pressure regulation, foot pedal activation, dual pneumatic handpieces, and a built-in air filter/regulator in a handled control unit that is easy to position on any bench.
Available in 110V and 220V versions with metric (6.0 mm) and imperial (6.3 mm) handpiece options to match your tooling setup. Whether you are engraving rings, finishing pendants, or preparing stone settings, the foot pedal keeps both hands on the workpiece while the front panel lets you dial in the exact pressure and speed for the task.
Voltage Selection Guide
Select the correct voltage for your region before ordering — using the wrong voltage will damage the motor and void any service support.
- 110V 60Hz — North America, Japan, Taiwan, and other 110V regions
- 220V 50Hz — Europe, UK, Australia, China, and most of Asia/Africa
Setup Compatibility Guide
| Setup Point | What to Confirm |
|---|---|
| Air compressor | Required for operation, not included. Ensure output is within the 0–45 PSI working range. |
| Air quality | Use clean, dry, oil-free air. Connect through the included air filter/regulator component. |
| Power version | Select 110V 60Hz or 220V 50Hz to match your local power supply. |
| Handpiece option | Choose metric 6.0 mm or imperial 6.3 mm to match your engraving bits. |
| Engraving bits and workholding | Not included. Prepare suitable bits, clamps, or fixtures for your task. |
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelry bench engraving, finishing, carving, and small metal detailing | Use without an external air compressor |
| Rings, pendants, charms, and small jewelry components on gold, silver, copper, and brass | Cordless, handheld, or fully portable engraving away from a bench |
| Operators who prefer foot-pedal activation for hands-free control | Guaranteed cutting performance on very hard metals or unknown alloys |
| Workshops choosing between 6.0 mm and 6.3 mm handpiece tooling setups | Buyers expecting engraving bits, compressor, or workholding tools to be included |
Technical Specifications
| Power Supply | 110V 60Hz / 220V 50Hz |
| Speed Range | 400–8000 RPM |
| Pressure Regulation | 0–45 PSI |
| Handpiece Options | Metric 6.0 mm / Imperial 6.3 mm |
| Machine Dimensions | 27 x 14 x 22.5 cm (10.6 x 5.5 x 8.9 in) |
| Shipping Dimensions | 30 x 30 x 33 cm |
| Machine Weight | 7 kg (15.4 lbs) |
| Control Unit | Bench-top body with top carry handle |
Pro Tips
- Confirm 110V or 220V before ordering — the power version cannot be changed after purchase.
- Choose your handpiece size (6.0 mm or 6.3 mm) before ordering compatible engraving bits.
- Use clean, dry compressed air and inspect the air filter/regulator before each session.
- Secure rings, pendants, and small metal pieces in a suitable fixture before touching the bit to the surface.
- Disconnect both power and air before changing bits, adjusting fittings, or inspecting the handpiece connection.
Frequently Asked Questions
Is an air compressor included?
No. A compressor is required for operation but is not included. Ensure your compressor output is within the 0–45 PSI working range.
What is the difference between the 6.0 mm and 6.3 mm handpiece options?
6.0 mm is the metric standard common in Europe and Asia; 6.3 mm (1/4 inch) is the imperial standard common in North America. Choose the option that matches your existing engraving bits.
What voltage should I order?
Order 110V 60Hz for North America, Japan, and Taiwan. Order 220V 50Hz for Europe, UK, Australia, China, and most of Asia and Africa. If unsure, check the label on any household appliance.
Are engraving bits included?
Engraving bits are not included. Select bits according to your material, engraving style, and handpiece size (6.0 mm or 6.3 mm).
What materials can it engrave?
Designed for jewelry metals including gold, silver, copper, and brass. Performance on very hard metals depends on the engraving bit and setup.
What should I prepare before ordering?
Confirm your voltage (110V or 220V), handpiece size preference (6.0 mm or 6.3 mm), compressor availability, and required engraving bits. Contact the Musttool team at musttool01@gmail.com if you have pre-purchase questions.
What's Included
- 1 x Pneumatic engraving machine control unit (with top carry handle)
- 2 x Pneumatic engraving handpieces
- 1 x Foot pedal
- 1 x Air filter/regulator component
- 1 x Power adapter
- 1 x Power cord
- Air tubing and fittings
- 1 x Allen key
- 1 x User manual
Support
Questions about voltage selection, handpiece compatibility, compressor requirements, or order status? Contact the Musttool team at musttool01@gmail.com. We respond within 24 hours on business days.