The Vermont American Fire Storm 3/8 Rotary Masonry Bits FS107RD are high-quality drill bits designed specifically for masonry work. Produced by Vermont American, a trusted brand known for producing durable and reliable tools, these bits are perfect for drilling into stone, concrete, and other hard materials. The 3/8 inch size makes them versatile for various drills and power tools, while the masonry type ensures they are suitable for tough projects requiring precision and strength. Ideal for professionals and DIY enthusiasts alike, these rotary masonry bits are a valuable addition to any toolbox.