Stalwart 75-HT3011 Long Arm Combo SAE & Metric Hex Key Set, 22 Piece Drop Forged Steel with Black-Oxide Finish, Consistent Accurate Fit for Long Life Sturdy Carry Sleeves with Marked Slots for Organization Easy Retrieval SAE sizes from 0.05" to 3/8," Metric sizes from 1.5mm to 10mm 13 SAE Hex Keys (3/8", 5/16", 1/4", 7/32", 3/16", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64", 1/16", 0.05") 9 Metric Hex Keys (10mm, 8mm, 6mm, 5mm, 4mm, 3mm, 2.5mm, 2mm, 1.5mm)