Passionate mechanics and motorsport enthusiasts always opt for high-quality tools, and this is evident in the top-level toolboxes of Pro-Tour mechanics who use SILCA HX-ONE essential kit in a wood box. Our finest S2 tool steel provides the perfect balance of strength, hardness, and shock resistance, ensuring precise and confident use while reducing the risk of damaging delicate fasteners. The keys are coated with thin-dense chrome and a textured polymer finish for maximum grip and control. To make it even more versatile, the kit includes a SILCA 17-4 Stainless Magnetic Adapter, transforming the 6mm hex key into a 1/4" bit driver.