The Tork Craft 9-Piece Hex Ball Point Allen Key Set (NT2106) is made of high-quality Chrome Vanadium (CrV) steel, heat treated for high toughness and torque. Standard hex tip on one arm, and a hex ball tip on the other for easy access to install and remove socket cap screws at an angled entry. Sizes included: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm. Ideal for home, workshop, and professional use.