The Koken hex socket insert 1/4" with a key width of 4 mm is a high-quality tool suitable for precise applications in various fields. Made from robust chrome-molybdenum steel, this socket insert offers high strength and durability required for professional use. The chrome-plated surface not only provides an appealing look but also protects against corrosion and wear. With a length of 22 mm, the insert is compact and allows access to tight spaces. The 1/4" connection size makes it compatible with a variety of socket sets, making it a versatile tool for mechanics and craftsmen. The Koken 2400M hex insert meets the standards DIN3124 and ISO 2725-1, underscoring its quality and reliability. Whether for repairs, maintenance work, or DIY projects, this socket insert is a valuable addition to any toolbox.