The UNIBIT 502T SET 15502 from Field Tool Supply is a premium step drill bit set designed for drilling holes in a variety of materials. This set features multiple sizes in one bit, allowing for efficient drilling without the need for multiple tools. Made from high-speed steel, the UNIBIT ensures durability and precision, making it suitable for metal, plastic, and wood applications. The unique step design allows for smooth and clean holes, reducing the risk of material damage. Ideal for electricians, plumbers, and DIY enthusiasts, this set is a must-have for any toolbox.