Description Simplify hardware installation with the ROK 3-piece self-centering bit set, designed for drilling accurate pilot holes for hinges, brackets, mending plates, and more. Each bit features a spring-loaded, self-centering barrel that ensures perfect alignment, allowing screws to sit precisely in place every time. The 1/4-inch quick-change shank makes swapping bits fast and efficient, making it ideal for both professionals and DIY enthusiasts. Key Features: Perfect for pre-drilling pilot holes for hinges, brackets, and hardware fittings Spring-loaded self-centering barrel ensures precision and straight screw alignment 1/4-inch quick-change shank allows for quick and easy bit changes What's Included: Bit Sizes: #6, #8, and #10 Warranty Information: For easy reference, you can view ROK’s warranty and service policy by visiting: ROK Warranty & Service Information.