The Facom spiral drill with a cylindrical shank is a precise tool specifically designed for reaming screws and bolts. With a diameter of 5/16 inch (7.9 mm) and a working length of 115 mm, this drill offers optimal performance for various applications. Weighing only 30 grams, it is lightweight and handy, making it easy to handle. The cylindrical shank ensures a secure connection with the screwdriver and allows for efficient power transfer during the drilling process. This spiral drill is ideal for professionals and DIY enthusiasts who value quality and reliability. The drill's construction guarantees a long lifespan and high precision, making it an essential tool in any workshop. Whether for repairs or industrial use, the Facom spiral drill meets the demands for performance and efficiency.