SKT8413 Features: -Socket size: 13 mm. -Drive size: 3/8''. Product Type: -Sockets. Drive Size: -3/8". Measurement Type: -Metric. Metric Socket Size: -13 mm. Contact Points: -6 Point (Hex). Quantity: -Single. Socket Depth: -Deep. Generic Dimensions: -Overall dimensions: 0.71'' H x 0.71'' W x 1.75'' D, 0.1 lb. Dimensions: Overall Product Weight: -0.1 Pounds.