Insulated Socket Wrench Set, Number of Pieces 10, Drive Size 3/8 In., Sockets Included (7) 3/8 In. Dr 12 pt. Sockets: 5/16 In., 3/8 In., 1/2 In., 7/16 In., 9/16 In., 5/8 In., 3/4 In., Tool Storage Included No, Includes 3/8 In. Dr Reversible Ratchet 7-3/4 In., (2) 3/8 In. Dr Extensions: 5 In., 10 In., Max. Use Voltage 1000VAC, Standards ASTM F 1505, IEC 60900