Description With the FLEX FAM10103-45 power through the most demanding applications with precision, durability, and control in every bit. This 45-Piece Impact Driver Bit Set is stocked with the most commonly used bit sizes, including a mix of Allen and Slotted bits not found in most impact driver bits sets. All FLEX bits are optimized for unrivaled bit life. Each piece is engineered for optimal impact distribution, so no energy or effort goes to waste. Dominate more applications on the jobsite with the FLEX FAM10103-45, included 1/2″ High-Quality CR-MO Thin Wall Deep Well Sockets. All this comes packed in an IMPACKS storage case for customizable organization and easy accessibility in any case in the STACK PACK™ lineup.