GEARWRENCH locking indexing ratcheting wrenches need just 5° of swing arc to move the fastener, as opposed to the 30° necessary for standard box end wrenches. Patented indexing technology allows you to pick the angle you need depending on the situation. Just a push of the indexing button allows you to select 13 different angles. The box end features improved strength from the off-corner loading technology that also reduces fastener rounding. These ratcheting wrenches are made from premium alloy steel for a long lasting precision tool.