The Quad-12 deep well impact flip socket set combines 12 SAE hex sizes in 3 color-coded sockets. Small 1/4 to 7/16-Inch, medium 1/2 to 11/16-Inch, and large 3/4 to 1-Inch. The spring-loaded action allows for hands-free size changes by applying pressure to the smaller socket to compress it out of the way. Compatible with Klein Tools' 1/4-Inch hex flip socket impact shaft, these Quad Sockets are a compact and convenient solution for any job