The Ko-ken SKU 2254M is a 12-piece 1/4 Sq. Dr. Bit Set, offering a versatile selection of tools for various applications. The set includes Phillips bits in sizes 1, 2, and 3; Slotted bits in 1x7 and 1.2x7; and Hex bits in sizes 3, 4, and 5. It also features a ratcheting ring wrench with 1/4" and 5/16" hex inserts, a 2769F spinner handle with a 1/4" square drive output, a 101A drive adapter for 1/4" hex to 1/4" square drive, and a 2137 bit holder for adapting 1/4" square drive to 1/4" hex. All components are neatly organized in a metal case with a blow-molded insert, ensuring easy storage and accessibility.