The UNIBIT 225 SET 10225 is an essential step drill bit set for anyone needing precision drilling. Crafted from high-speed steel, these bits are designed to handle a variety of materials including metal, plastic, and wood. The unique step design allows for easy hole enlargement and creates clean, burr-free holes. This set includes multiple sizes, making it versatile for different applications. Compatible with standard drill chucks, the UNIBIT 225 SET is perfect for both professionals and DIY enthusiasts looking for efficiency and reliability in their drilling tasks.