The drill head with a diameter of 90 mm, model 19970 4, is a high-quality tool from Heller designed for precise drilling tasks. With a working length of 40 mm and an overall length of 115 mm, this drill head offers the necessary flexibility and efficiency for various applications. Its robust construction ensures a long lifespan and reliability, while the exact sizing allows for easy handling. The drill head is ideal for use with different materials and is suitable for both professional tradespeople and DIY enthusiasts who value quality. The package includes a drill head that is ready for immediate use. With this product, you can create precise holes in a variety of materials, making it an indispensable tool in any workshop.