Klein Tools BLS10M 10-Key Metric Hex Key Caddy Set, L-Style Ball-End Keys, Sizes 1.5 to 10mm, Heat-Treated, Black Phosphate

INDUSTRIAL STRENGTH: Heat-treated and tempered steel for long-term durability, CORROSION PROTECTION: Each hex key features a black phosphate coating for superior rust resistance, BALL-END HEX KEYS: Designed for optimal performance at angles up to 25 degrees, SECURE STORAGE: Internal locking mechanism prevents loss of keys, HASSLE-FREE KEY REMOVAL: Twist-to-Lock case for easy key removal, INTERLOCKING CASES: Cross-compatible cases stack together for sleek and convenient storage