The RotoZip GP50 1/8-Inch Drywall Guidepoint Cutting Bits (50-Pack) are high-quality cutting tools designed for precision cutting in drywall and steel surfaces. Made from durable alloy steel, these round-shaped bits feature a straight shank and a powder-coated finish for long-lasting use. With a cutting diameter of 1/8 inch and a minimum bore diameter of 0.1 inches, these bits are suitable for a variety of cutting tasks. The 50-piece pack ensures that you have plenty of spares on hand for your projects, making them a reliable choice for professionals and DIY enthusiasts alike.