The Pass-Thru socket and GearRatchet ratchet system by GEARWRENCH was designed to improve productivity and access on every job. The GearRatchet ratchets need as little as 5° to move fasteners versus 30° for standard wrenches and are 40% stronger than standard ratchets by eliminating the drive tang. The ratchets are up to 50% thinner than standard ratchets providing superior access to even the most hard to reach fasteners. The Pass Thru sockets are a thin wall design. They replace the need for deep well sockets as they loosen and drive nuts on bolts of any length. The pass-thru sockets integrate into the GEARWRENCH GearRatchet handle, reducing overall height and increasing torque strength. The GEARWRENCH adapter allows for the use of standard sockets and drive tools. The 8946 is a 46-piece 1/4 in. and 3/8 in. drive SAE/metric 6 point set featuring SAE and metric sockets,3 drive adapters to convert for use with standard socket sets, 2 extensions and 2 GearRatchet ratchets . Set is in a blow molded case for storage and tool retention.