Description The Pro?Grade 10 Piece 1/2 Inch Drive Metric Socket Set is engineered to deliver professional strength performance durability and long lasting value. Manufactured from heat treated chrome vanadium steel these sockets provide exceptional strength while a nickel chrome finish helps resist rust and corrosion. Precision chamfered edges combined with the Dyna Drive torque system direct torque to the sides of fasteners allowing improved grip increased torque capacity and reduced fastener wear. Designed to meet or exceed ANSI specifications this versatile metric socket set is ideal for demanding shop environments and serious DIY applications and is backed by an unconditional lifetime guarantee.Product Details:Metric socket set10 piece set1/2 inch drive6 point socket designIncludes sizes 12 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 21 mm 22 mm 24 mmHeat treated chrome vanadium steel constructionNickel chrome plated for rust and corrosion resistanceChamfered socket edges for smooth fastener engagementDyna Drive torque system for improved torque transferMeets or exceeds ANSI specification B107.5MIncludes storage organizer railDesigned for professional and heavy duty use