1、With Scale: This car model hole puncher features 0 to 14mm scale on tip, allowing for quick and easy reaming of various hole sizes without the need for constant measuring and checking. 2、High Strength: Made from high strength steel, this hole puncher reamer is hard wearing and resistant to deformation, ensuring long lasting performance. 3、Light Weight: This hole opener is lightweight and easy to carry, convenient for RC car, boat, and aircraft model DIY enthusiasts. 4、Textured Surface: The surface of this hole puncher is textured, providing a comfortable grip and excellent slip resistance during use. 5、Wide Usage: This tool is perfect for creating exhaust holes, body post holes, and aviation holes, making it an essential tool for RC hobbyists and enthusiasts.