Unior Three size Hex Key 4 x 5 x 6mm 624909 Professional Bicycle tool, quality guaranteed

Unior's professional-grade hex key set combines three essential sizes—4mm, 5mm, and 6mm—in one compact tool, ideal for precision bike maintenance and adjustments. Engineered to exacting standards, this durable instrument delivers reliable performance across drivetrain components, brake systems, and frame hardware. The robust construction ensures longevity through countless repairs and builds, making it an indispensable addition to any serious cyclist's toolkit or workshop.