The Eklind Hex L-Key Allen Wrench Combo Set, Long SAE, and Short Metric (22-piece) meet the highest standards demanded by professional mechanics, tradespeople, DIYers, and hobbyists. Made from premium Eklind Alloy Steel, each key is heat-treated, quenched, and tempered to deliver optimal strength, torque, and ductility. A durable, rust-resistant coating ensures long-lasting performance and safety in tough working conditions.