The IBU internal brush, with a diameter of 4 mm and a length of 100 mm, is specifically designed for precise brushing tasks in hand use. It is made of high-quality brass wire with a diameter of 0.15 mm, making it particularly robust and durable. This brush is ideal for applications where thorough cleaning or processing of surfaces is required. The integrated loop allows for easy handling and attachment, facilitating use in various work environments. With a sales unit of 10 pieces, this product is a practical choice for professionals and hobbyists who value quality and efficiency. The internal brush is versatile and offers an effective solution for various cleaning and processing tasks.