Always suitable - Allen key set in MM: 0.7 mm to 10 mm and 0.028 to 3/8 inch DURABLE - Extra long professional Allen key set, for six screws, metric hollow profiles, durable quality made of 45 steel MULTIFUNCTIONAL - Equipped for all applications. Whether mechanical precision screws or microelectronic screws - with our hexagon socket wrench set you have a solution for everything. ROBUST - Corrosion-resistant thanks to nickel-plated surface, sturdy tool for amateurs and professionals < p>ALWAYS READY FOR USE - Quick to hand thanks to practical plastic holder for tidy storage, FREE universal knife describe: Made from industrial-quality chrome-vanadium steel The dimensions of the long SAE arm include: 0.028", 0.035", 1/2", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5 /16" and 3/8" The metric dimensions of the short Arms include:< /p> 0.7mm, 0.9mm, 1.3mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm and 10mm Includes: 15 SAE long arm Allen keys (1