Tooltos Micro Air Grinder Kit | 65000RPM, 16-in-1, Pneumatic
- 95 in stock
Description
Key Selling Points
- 65,000 RPM top speed delivers fast, clean material removal for grinding, cutting, chamfering, carving, and polishing in a single tool
- Dual collet system — 3mm and 2.38mm — accepts both standard jewelry burs and die grinder accessories without adapters
- Pen-shaped body (132mm / 5.2 in long, approx. 176g / 6.2 oz) fits naturally in hand for precise control during detail work
- Rear exhaust port directs air away from the workpiece, keeping your view clear and preventing debris from blowing back toward you
- 10 grinding heads included — covers the most common shapes for metal grinding, stone carving, and surface finishing
- Complete kit includes oiler, spanners, collet, and quick-release air hose adaptor — ready to connect to your compressor and start working
About This Air Grinder
The Tooltos Micro Air Grinder is a professional-grade pneumatic rotary tool designed for jewelers, metalworkers, and precision craftspeople who need high-speed grinding and finishing capability in a compact, hand-held form. Running at up to 65,000 RPM on 90 PSI compressed air, it delivers consistent power for grinding, cutting, chamfering, carving, and polishing across metals, stones, and similar materials.
The pen-shaped body keeps the tool balanced and easy to maneuver in tight areas, and the rear exhaust design prevents air from disturbing fine work or blowing debris toward the operator. The dual collet system means you can switch between 3mm and 2.38mm accessories without needing a separate adapter, making this kit compatible with a wide range of standard grinding and carving bits.
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelers and metalworkers needing a high-speed rotary tool for grinding, deburring, and surface finishing | Use without an air compressor — this is a pneumatic tool that requires a compressed air supply (min. 90 PSI / 6.2 bar) not included |
| Stone carvers and jade artists who need precise, high-RPM material removal in a lightweight pen-style tool | Electric-only workshops without a compressor — for electric rotary tools, see the Tooltos 204 Micro Motor Engraver |
| Workshops already running compressed air who want a versatile, low-maintenance grinding tool | Heavy-duty industrial cutting of hardened steel or structural materials beyond jewelry and craft applications |
| Mold makers and engravers who need a compact tool for chamfering, carving, and detail polishing | Bits with shanks larger than 3mm — the maximum collet size is 3mm |
Technical Specifications
| Top Speed | 65,000 RPM |
| Required Air Pressure | 90 PSI (6.2 bar) |
| Air Consumption | 60 L/min (2.1 CFM) |
| Collet Sizes | 3mm and 2.38mm |
| Tool Length | 132mm (5.2 in) |
| Tool Weight | Approx. 176g (6.2 oz) |
| Package Dimensions | 340 x 200 x 50mm (13.4 x 7.9 x 2.0 in) |
| Package Weight | Approx. 697g (1.5 lb) |
| Exhaust Direction | Rear exhaust |
Pro Tips
- Add a few drops of tool oil into the air inlet before each use — the included oiler keeps internal components lubricated and extends the working life of the grinder significantly.
- Use an inline air filter and moisture trap between your compressor and the tool — moisture in the air line causes internal corrosion and inconsistent speed over time.
- Start at lower pressure and increase gradually when working on new materials — 65,000 RPM is the maximum, and most jewelry grinding tasks perform well at 70-80 PSI.
- Use the quick-release adaptor to disconnect the air hose safely before changing collets or grinding heads — never change accessories while the air supply is connected.
- Match the grinding head shape to the task: cylindrical heads for flat surface grinding, ball heads for concave areas, and cone heads for chamfering and edge work.
Frequently Asked Questions
Does this kit include an air compressor?
No. An air compressor is required but not included. Your compressor must supply at least 90 PSI (6.2 bar) and 60 L/min (2.1 CFM). Most standard workshop compressors in this range are compatible.
What collet sizes does this grinder accept?
The kit includes both a 3mm and a 2.38mm collet. This covers the two most common shank sizes used in jewelry grinding and carving accessories. Bits with shanks larger than 3mm are not compatible.
What materials can this grinder work on?
The micro air grinder is suitable for gold, silver, brass, copper, aluminum, jade, stone, and similar materials used in jewelry and craft work. It is not designed for hardened steel or structural industrial materials.
How do I lubricate the tool?
Add 2-3 drops of pneumatic tool oil into the air inlet before each use. The included oiler is designed for this purpose. Regular lubrication prevents internal wear and maintains consistent speed performance.
Can I use this tool for engraving as well as grinding?
Yes. The high RPM and pen-style grip make it suitable for light engraving and carving work in addition to grinding, chamfering, and polishing. For dedicated impact engraving with foot pedal control, see the Tooltos GraverMate Pneumatic Engraver.
What if I have questions after receiving the kit?
Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days and can assist with compressor compatibility, accessory selection, and troubleshooting.
What's Included
- 1 x Micro air grinder (pen-style, 132mm)
- 10 x Grinding heads (assorted shapes)
- 1 x 3mm collet
- 1 x 2.38mm collet (included in kit)
- 1 x Quick-release air hose adaptor
- 1 x Pneumatic tool oiler
- 2 x Spanners
Support
Questions about compressor requirements, collet compatibility, or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
