POWER: The engraving pen's powerful 20,000 rpm motor is powered by just two AAA batteries and allows you to engrave on metal, wood, plastic, leather, ceramics, and other materials. HIGH QUALITY: The pen's 1mm engraving tip is made of high-strength diamond, which is super abrasion and impact resistant, ensuring a longer lifespan. The body is made of aluminum. The compact engraving machine has an ergonomic, three-lobed handle for precise fingertip control. EASY TO USE: Hold the DIY engraving pen like a pen with your thumb on the control button and apply light pressure to the surfaces. LIGHTWEIGHT AND ERGONOMIC DESIGN: Small, lightweight, and easy to carry, you can hold the precision engraving tool like a pen to perform intricate work without excessive stress on your wrist or hand. Ideal for beginners or experts: this tool offers both enjoyment and comfort for the user - whether the task is big or small, make sure you get good results.