The 4 Piece General Tools 139/4 Internal Broken Pipe Steel Wrench Set includes a variety of sizes ranging from 3/8" to 1". These internal pipe wrenches from General Tools are designed specifically for removing and repairing broken pipes. The high-quality steel construction ensures durability and long-lasting performance, making it a reliable tool for home and workshop use. Perfect for tackling plumbing projects with ease and efficiency.