PB Swiss Tools Rainbow Metric Hex Key (Allen Wrench) set for hex socket screws size 1.5mm to 6mm. Color-coded powder coat finish over chrome plating with perfect dimensional accuracy for exceptionally long tool life. Each tool is color-coded according to size for quick identification and ease of use. Includes handy plastic holder. PB Swiss Tools hex keys feature user-friendly dimensions compared to ISO/ANSI norms: longer handle fits the hand more comfortably while the shorter key part makes it easier to reach less accessible screws. Work with the best! PB Swiss Tools, established in 1878 and operating as a family business, offers a broad range of hand tools for professionals and craftsmen who insist on the highest standards of quality, durability, and precision. Today, the products are still entirely developed in the Emmental region of Switzerland and are produced with sustainability in mind. PB Swiss Tools has spent over a century perfecting the ideal blend of quality spring steel alloys and precise heat treating processes to develop hand tools of unrivaled quality, unsurpassed precision, toughness, flexibility, and performance. All PB Swiss Tools products come with an unlimited lifetime guarantee. PB Swiss Tools manufactures according to the following standards: SQS Reg. Nr. 10762: ISO:9001, ISO:13485, ISO:14001, OHSAS:18001, FSC C008912: FSC COC 100%.