Experience reliability with our Square Driver Bits. Designed with a tapered shank to easily access small holes, this durable one-piece design ensures a secure grip, making it perfect for compatible Robertson® brand screws. With a 1/4" shank and an overall length of 2-3/4", this No. 1 bit features a green sleeve for quick identification. Please note that these bits are not suitable for use with impact tools and are sold individually. Enjoy precision and ease in every project.