Crescent 121 Piece Standard (SAE) and Metric Chrome Mechanics Tool Set Prelude Plus XL turning a functional step into Color Finish:Highland Walnut turning a functional step into a refined ritual It features a tip over switch for safety balanced handles for better leverage and control Tools meet stringent new ANSI and ASME specifications Crestoloy alloy steel for strength and durability Heavy duty blow mold case with steel hinges and 2 latches to keep your tools organized and secure Innovative new hex key caddy that makes access to the size you need quick and easy Acetate magnetic bit driver for improved impact mechanical and consumer applications Set includes 1 4 in and 3 8 in drive tools (SAE and metric) allowing you to tackle a wide range of projects