The DW 4-1/4in (108mm) Carbide Pilot Bit by BLACK & DECKER IRWIN is designed for precision drilling in various materials. This bit features a durable carbide tip that ensures longevity and sharpness, making it ideal for heavy-duty applications. With a shank size of 3/8 inches, it is compatible with standard drill chucks. The bit's design allows for efficient chip removal, enhancing performance and reducing heat buildup during use. Perfect for professionals and DIY enthusiasts alike, this pilot bit meets industry standards for quality and reliability.