Popular home and professional workshop item, providing a set of all popular Allen Wrenches Features Includes 2, 2.5, 3, 4, 5, 6, 8, and 10mm sizes Bondhus balldriver tip on the long arm (Except on 8mm and 10mm sizes) allows access to awkwardly placed bolts Super strong 8650 CR-VN tool steel Holder features tapered holes for easy location Made in the USA and covered by Park Tool's legendary limited lifetime warranty