T & E Tools 1/4" Drive Metric 13Pc. Multi-Lock Spline Socket Set Multi-Lock sockets are new patented design that fit six different fastener configurations Includes: Square, Torx-r, 6 Point, 12 Point, SAE & Metric , Spline and Ribe. Metric Sizes: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm Supplied on Socket Rail