Kaisi Mini Electric Grinding Pen

The Kaisi Mini Electric Grinding Pen is a high-precision rotary tool engineered for technicians who require accuracy and control when working on delicate electronic components. Whether you’re repairing smartphones, refurbishing circuit boards, or carrying out fine engraving and polishing tasks, this versatile tool delivers smooth and consistent performance.

Designed with a lightweight, ergonomic body, the grinding pen minimises hand fatigue during extended use while providing excellent manoeuvrability for intricate repair work. Its variable-speed operation allows you to adapt to different materials and applications, making it suitable for both beginners and experienced repair professionals.

The included assortment of grinding and polishing bits enables you to perform a wide range of tasks, including PCB modification, IC glue removal, rust removal, metal polishing, plastic trimming, precision drilling, engraving, deburring, and surface finishing. The compact design also makes it an ideal addition to any electronics repair bench, training workshop, or DIY toolkit.

Whether you operate a busy phone repair shop or are expanding your professional repair equipment, the Kaisi Mini Electric Grinding Pen is a reliable tool that helps improve precision, efficiency, and the quality of every repair.

Key Features

• High-precision rotary tool for delicate repair work
• Ideal for smartphones, tablets, laptops, and electronics repair
• Lightweight and ergonomic design for comfortable handling
• Suitable for grinding, polishing, engraving, drilling, and cutting
• Comes with multiple interchangeable grinding bits
• Low vibration for improved accuracy and control
• Easy bit replacement for quick workflow
• Durable construction for long-lasting performance
• Compact and portable for workshop or field use
• Suitable for professional technicians, repair students, and DIY enthusiasts

Applications

• Smartphone motherboard repair
• PCB grinding and modification
• IC glue and adhesive removal
• Metal and plastic polishing
• Precision engraving
• Fine drilling and cutting
• Rust and oxidation removal
• DIY electronics projects
• Jewelry and craft work