That signature blue of Park Tools that let's you know these Allen Keys are top quality. The allen keys are perfectly shaped for a precise, secure fit in the head of the bolt. Made from steel these will pass the test of time.
Includes 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm sizes
Wrench tips are precision chamfered for a clean, tight fit
Made from through-hardened industrial quality steel