Katerk 3.7V Mini Cordless Rotary Tool Kit with 70 Accessories
14 sold in last 24 hours
- Light-Duty Craft Tool: Designed exclusively for desktop DIY projects, this mini cordless rotary tool features 5 speed settings from 5,000 to 20,000 RPM, and it provides stable RPM management for fine sanding, model detailing, and 3D print finishing
- Pen-Style Precise Grip: Weighing about 0.33 lbs with an ergonomic textured anti-slip coating, this mini rotary tool kit handles naturally like a writing pen; it delivers steady control and reduces hand fatigue over extended fine woodworking and carving sessions
- Extended Battery Runtime: With a 2500mAh rechargeable battery and a 4-LED real-time power indicator, this 3.7V rotary tool ensures stable output. Easily monitor power levels and recharge via the included standard USB-C cable
- 70 Multi-Purpose Accessories: Comes with a 70-piece comprehensive accessory kit with universal 1/8-inch shanks to meet diverse sanding, polishing, and drilling needs. A must-have setup for 3D printing enthusiasts, model builders, and tabletop hobbyists
- Quiet LED Work Light: Operating quietly below 45dB even at maximum speed, this micro rotary tool allows focused creation without noise. The built-in bright LED light perfectly illuminates dark corners for intricate DIY hobby craft detailing
- Note for Optimal Use: Strictly designed for light-duty crafts. Rely on high-speed rotation and apply gentle, light strokes rather than heavy pressure. Always fully tighten the chuck before turning on the tool to prevent accessory loosening
Estimated shipping
Select a product to estimate shipping.How is the battery life? Is it convenient to charge?
Features a 2500mAh lithium battery with high-quality cells, providing 2-3 hours of continuous use—25% longer battery life than ohter products. Features USB-C charging, 4 LED power indicators, and memory function to save your last speed setting.
Is the 5-speed adjustment easy to operate? What materials is it suitable for?
5 speeds (5000/8000/12000/16000/20000 RPM) are clearly marked and easy to use. Speeds 1-2 (5000-8000 RPM) for wood/pet nails, speed 3 (12000 RPM) for plastic/3D prints, speeds 4-5 (16000-20000 RPM) for metal/glass.It is easy for beginners to use.
Are all 70 accessories useful for most projects?
This tool is designed for DIY projects and precision tasks, ideal for work like sanding, engraving, 3D print finishing, jewelry polishing, drilling, and pet nail care; it is not intended for heavy-duty metal cutting or industrial materials.
How does it feel to hold? Will my hand get tired?
The 30° ergonomic handle with anti-slip coating fits the hand naturally. At only 0.33 lbs, it's lightweight for comfortable use over 2-3 hours, ideal for tasks requiring steady, precise control.
Is this engraving pen durable? What about after-sales service?
Every function undergoes 5000 hours of durability testing. A 2-year repair is included, with replacements for quality issues. Accessories are consumables subject to normal wear and can be purchased separately - niversal 1/8" (3.2mm) diameter.
Product details












| Main Specification | |
|---|---|
| Usos Recomendados Para Produto | Moagem or Drilling or Areia or Gravação or Polishing or Cortar or Precision/DIY Crafts |
| Componentes Incluídos | 1 × Rechargeable Rotary Tool or 1 × USB-C Cable or 70 × Rotary Tool Accessories or 1 × Storage Bag |
| Fabricante | Katerk |
| Velocidade de rotação máxima | 20000 rpm |
| Marca | Katerk |
| Número de itens | 1 |
| Fonte de Energia | Bateria Alimentada |
| Tensão | 3.7 Volts |
| Cor | GREY |
| Peso do Item | 150 g |
| Product information | |
| Número de embalagens | 1 |
| Technical Details | |
| Número de parte de fabricante | SY-IS39425-DE-FBA |
| Velocidade Mínima | 5000 Rpm |
| Item details | |
| Número do modelo | SY-IS39425-DE-FBA |
| Others | |
| Outras características especiais do produto | Compacto or Leve or Sem fio or Portátil or Luz Liderada |
| Tipo de produto | Rotary Tools |
| Realce do Item | 5-Speed Small Craft Tool 5000-20000 RPM for Delicate Sanding Polishing DIY Crafts and Micro Detailing |





