The Black Diamond Ball End Hex Key Set gives you a full range of SAE and metric sizes with ball-end tips that help reach hex fasteners at an angle for easier access in tight spaces. This 26-piece set includes 13 SAE keys in 0.05, 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, plus 13 metric keys in 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, and 10mm. A practical set for assembly, maintenance, and repairs when you need both measurement systems and added flexibility for hard-to-reach fasteners.