For heavy-duty applications there's no better alternative than Proto Hex Bit Socket Sets. Proto Hex Bit Socket Sets offer a range of sizes and unlike cheaper sockets these sockets offer the power you need. Proto Hex Bit Sockets grip nuts and bolts tightly in order to securely fasten them. All Proto Hex Bit Socket Sets are made of alloy steel for improved strength and have a beautiful chrome polish. Tools Plus offers a multitude of quantities and sizes to suit your Proto Hex Bit Socket Set needs. Take a look and find the right set for your needs.