Craftsman V-Series™ tools are designed to professional specifications . The Craftsman V-Series™ 8pc Combo Screwdriver Set leverages premium alloy steel and precision machined tips to deliver up to 10x greater durability*. The handles are designed with the mechanic in mind blending precision, torque and control, with a soft touch material that offers comfort and verified *2x protection against the most common garage solvents. Larger sizes also include a wide bolster with ample space to grip and wrench when additional torque is required. This set includes Ph1, Ph2, Ph3, Ph4, SL 1/8", SL 1/4", SL 5/16", SL 3/8"