Milwaukee SHOCKWAVE™ Impact Duty Lineman's 7/16" to 1/2" Impact Duty Socket Adapter is designed to be the most durable adapter on the market, featuring a pin detent for better retention to the socket. This adapter includes an optimized Shockzone™ that absorbs peak torque, preventing breakage and providing up to 30 times the life of standard adapters. Crafted from Custom Alloy76™ steel, it maximizes resistance to wear and shock, ensuring long-lasting performance. The 7/16 inch hex shank locks securely into all 7/16 inch quick connect chucks, making it a reliable choice for demanding impact duty applications. Model Number: 48-32-5100