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Home / Electric Grinder / Masterproof Handheld Electric Grinder - Mini Polishing Machine Set for Cultural Artifacts, Carving, and Rotary Tools

Attributes

Brand -
Category Hardware & Tools / Electric Grinder
Origin -
Power Source Corded Electric
Speed Range 10,000 - 32,000 RPM
Chuck Size 0.5mm - 3.2mm
Weight 180 grams
Cable Length 1.8 meters
Included Accessories 60-piece bit set and flexible shaft
Material Housing Reinforced ABS Plastic
Cooling System Internal ventilation fans
Switch Type Variable speed dial with lock-on
Warranty Period 2 Years Limited

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Essential for model making

The precision of this grinder is outstanding. I use it for modifying miniature figures and the high RPM setting cuts through resin cleanly. The included bit set covers almost every need I have.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Exceeded expectations

I was skeptical about a mini grinder handling hard materials, but it polished my glass art pieces flawlessly. The vibration is minimal, which helps maintain steady hands during intricate work.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for delicate restoration work

I use this grinder for restoring small ceramic artifacts and it offers incredible control at low speeds. The variable speed dial is very smooth, allowing me to polish without damaging fragile surfaces.

A

Anonymous

Mar 20, 2026

Rating: 4/5

Solid performance for the price

Very happy with this purchase. It handles fine detail work beautifully. The grip is comfortable for extended periods, though I wish the case was a bit more rugged for travel.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Lightweight and powerful

Despite its small size, this machine has enough torque for most polishing tasks. I've used it on stone carvings and metal jewelry with great results. It doesn't overheat even after an hour of continuous use.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Great value for hobbyists

Excellent tool for wood carving and detailing. The flexible shaft attachment is a game changer for reaching tight spots. Only minor issue is the cord could be slightly longer for my workshop setup.

5 FAQ

Q: What is the maximum diameter of the shank this tool accepts?

A: The collet accepts shanks ranging from 0.5mm up to 3.2mm (1/8 inch).

Q: Is there a replacement carbon brush available if needed later?

A: Yes, replacement carbon brushes are available as spare parts through our official service center.

Q: Does the flexible shaft come included in the box?

A: Yes, the standard set includes a flexible shaft attachment along with a comprehensive 60-piece accessory kit.

Q: Can I use this for polishing silver jewelry?

A: Absolutely. This unit is highly effective for polishing precious metals like silver and gold when paired with felt bobs and polishing compounds.

Q: Can this grinder be used on glass without cracking it?

A: Yes, when used with the appropriate diamond bits and at lower speed settings, it is safe for polishing and engraving glass surfaces.

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