The DEWALT DWMT73812 20-Piece 3/8 in. Drive Deep Socket Set has knurled beauty rings help to reduce slippage for hand tightening applications. This set comes in a lockable, durable case to safely store your tools. It also includes a removable internal tray for versatility. Lockable stacking cases Durable transparent lid Knurled beauty rings for hand tightening applications Exceeds ANSI specifications Removable internal tray 3/8 in. drive SAE deep dockets: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16. 3/8 in. drive metric deep sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 Features Item Weight 5.8 Number of Pieces 20 Hand Tool Type Socket Set Individual/Set Set Universal Universal Socket Type Hex Measurement Standard Metric,SAE Returnable 180-Day Socket Depth Deep Tools Product Type Hand Tool Manufacturer Warranty Limited Lifetime