9-Piece Metric Hex Driver Bit Set 1.5-8mm - Taiwan By ProTools High quality bits for hex - Allen screw fasteners in Metric sizes Hardened & tempered S2 tool grade steel resists twisting and cam-out. Made in Taiwan Must-have set for automotive, bike, appliance repair - especially with increasingly-common Metric-sized screws & bolts Hex shank fits all 1/4-inch driver handles, extensions & adapters Sizes 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 5.5mm, 6mm & 8mm in PVC organizer sleeve