Rotary tool Proxxon GG 12 — 20000 RPM, 12–18V AC, 145 mm length, 50 g

Handheld rotary tool Proxxon GG 12 offers a compact and lightweight solution for precision tasks with a maximum idle speed of 20,000 RPM. Powered by an AC source with 12–18 V input, the tool measures 145 mm in length and weighs approximately 50 g, providing the handling characteristics of a fine writing instrument. The unit includes a touch-sensitive switch for responsive control, a simple push in/pull out shaft holder that accepts accessories with a shaft capacity of 2.35 mm, and one diamond bit with a 1.8 mm spherical head.

Advantages

The Proxxon GG 12 combines high rotational speed with low weight and compact dimensions to enable accurate, fatigue-minimizing work over extended periods. Its touch-sensitive switch gives precise start control, while the quick-change shaft holder simplifies accessory replacement. The tool's form factor and balanced design make it suitable for delicate engraving, grinding, cutting, polishing and drilling tasks where fine motor control is essential.

Suitable for

• Model making and fine hobby work
• Engraving and detailing on glass, metal, wood and plastic
• Electronics and PCB work requiring small-diameter bits
• Small repair and maintenance tasks with precision requirements

Key specifications

• Maximum speed: 20,000 RPM (idle)
• Power supply input: 12–18 V AC
• Tool length: 145 mm
• Weight: approx. 50 g
• Shaft capacity: Ø 2.35 mm
• Supplied accessory: diamond bit with 1.8 mm spherical head

How to use

Connect the Proxxon GG 12 to a suitable 12–18 V AC power supply with at least 0.5 A capacity. Hold the tool like a pen for best control and start the motor using the touch-sensitive switch. Insert or remove accessories via the push in/pull out shaft holder; ensure the shaft is fully seated before operating. Use appropriate bits and moderate pressure, allowing the high rotational speed to perform the work rather than forcing the tool.

Usage recommendations

For reliable operation, use a compatible PROXXON MICROMOT power supply (for example NG 2/S or NG 5/E) or any suitable 12–18 V AC adapter able to supply at least 0.5 A. Wear eye protection and, where appropriate, a dust mask when working with materials that produce particulates. Select bits matching the 2.35 mm shaft capacity and let the tool run up to speed before engaging the workpiece for optimal results.