With the Milwaukee Shockwave Impact Duty impact socket adaptor set 4932480356, you easily bridge different square drive sizes without investing in multiple full socket sets. This 4-piece set includes adaptors for 3/8" to 1/4", 3/8" to 1/2", 1/2" to 3/8", and 1/2" to 3/4". Engineered from high-grade chrome-molybdenum alloy steel, these adaptors reliably endure demanding high-torque fastening and loosening on automotive, industrial, or construction jobs. The secure ball detent retention keeps your impact sockets locked firmly in place throughout heavy-duty use, while stamped and laser-etched markings ensure you immediately identify the exact size you need.