The MILWAUKEE® SHOCKWAVE™ Lineman's 10PC 2-in-1 12PT Socket Set is designed to increase efficiency and safety for Lineman. The anti-rust, stainless steel spring-loaded design makes this 2-in-1 socket the most durable. The 12PT design allows compatibility with both hex and square hardware for increased versatility and hand-free changes. A 7/16" to 1/2" and ¼” to ½” impact adapters are included.