18V–21V Mini Electric Grinder 3-Speed DIY Rotary Tool Kit

18V–21V Lithium Battery Compatible Mini Electric Grinder – 3-Speed DIY Tool Kit

Take your DIY projects to the next level with this compact, powerful rechargeable lithium mini electric grinder and drill. Compatible with 18V–21V lithium batteries (sold separately), this CE-certified rotary tool delivers professional-grade performance in a lightweight, pen-shaped body. With three adjustable speed settings and a no-load speed of up to 18,000 RPM, it handles grinding, polishing, engraving, cutting, and detailed fine work with ease.

Made in Mainland China.

Key Features

• Premium Aluminum Alloy Body: Durable, lightweight construction built to withstand frequent use.
• 3-Speed Adjustable Control: Forward and reverse stepless speed regulation for full precision control — no-load speed up to 18,000 RPM.
• Ergonomic Pen-Shaped Design: Comfortable grip reduces hand fatigue during extended use, ensuring safe and accurate operation.
• Wide Compatibility: Fits 18V–21V lithium batteries (battery and charger not included), compatible with popular 18V battery platforms.
• Chuck Clamping Range: 0.4–3.2mm — accommodates a wide variety of bits and accessories.
• Versatile Applications: Ideal for grinding, polishing, engraving, cutting, drilling, and pet nail trimming.
• CE Certified: Meets European safety and quality standards.
• Comprehensive Accessory Kit: Everything you need to get started is included right in the box.

Specifications

What's in the Box

• 1× Rechargeable Lithium Electric Grinder
• 1× Sandwich Shaft
• 1× Speed Regulator
• 2× Wrench
• 1× Rubber Wheel
• 1× Tapping Rod
• 1× Circular Saw Blade
• 2× Diamond Grinding Needle
• 2× Wool Polishing Wheel
• 3× Sandpaper Ring
• 3× Twist Drill Bit (0.5 / 1.0 / 1.5mm)
• 5× Grinding Wheel Heads
• 1× Storage Box
• 1× User Manual

Related Products You May Like

• 1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed for Carpentry & Gardening
• 10Pcs Wooden Handle Nylon Bristle Paint Brush Set – Dusting and Cleaning Tool Set
• 1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle Design

Note: Due to manual measurements, please allow a ±1–3 cm difference. Colors may vary slightly due to lighting and display settings.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Is the battery or charger included with this mini electric grinder?

A: No, the battery and charger are not included. This mini electric grinder is compatible with 18V–21V lithium batteries. It is designed to work with popular 18V battery platforms, so you can use batteries you may already own.

Q: What tasks can I use this 3-speed mini grinder for?

A: This versatile rotary tool is suitable for a wide range of tasks including grinding, polishing, engraving, cutting, drilling, and detailed fine work. It is also great for trimming pet nails with the included rubber wheel accessory.

Q: What is the chuck clamping range and what size bits does it accept?

A: The chuck clamping range is 0.4–3.2mm, making it compatible with a wide variety of standard rotary tool bits and accessories. The included kit also comes with twist drill bits in 0.5mm, 1.0mm, and 1.5mm sizes.

Q: Is this grinder safe to use? Does it have any certifications?

A: Yes, this mini electric grinder is CE certified, meaning it meets European safety and electromagnetic compatibility standards. The ergonomic streamlined design further ensures stable, controlled, and safe operation during use.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.