The Vermont American 3/16, 1/4, 5/16 & 3/8" Carbide Tip Masonry Drill Bit Bundle includes 4 high-quality drill bits suitable for various drilling tasks. Made of durable steel with a silver color, these drill bits are designed for optimal performance and longevity. The Vermont American brand ensures a lifetime warranty, making it a reliable choice for any DIY enthusiast or professional tradesperson. Each drill bit in the bundle has a different diameter to cater to a range of drilling needs, making it a versatile addition to any toolkit.