Experience unparalleled safety and performance with our 12 Piece Premium Insulated 3/8 Inch Drive Socket Set. This exceptional toolkit is designed to provide ultimate protection for high-voltage applications, featuring sockets made from durable injection molded nylon thermoplastic. Each piece in this set has undergone rigorous testing to comply with IEC60900 Category C and ASTM F1505 standards, ensuring you can work safely and confidently. Built to withstand extreme conditions, these insulated tools are resistant to impacts, abrasions, and flames, giving you peace of mind during use. Our testing protocol guarantees reliability, with each tool tested at 1000 volts for 3 minutes while submerged in water. This versatile set operates effectively in temperature ranges from -40ºF to 158ºF (-40ºC to 70ºC), making it suitable for a variety of environments. The convenient carrying case includes 6 metric sockets (8, 10, 13, 17, 19, and 20mm), 4 imperial sockets (3/8, 1/2, 3/4, and 7/8 inches AF), a 3/8 inch reversible ratchet, and a 127mm (5 inch) extension bar. Get everything you need for your projects in one complete package!