The 13-piece ¼” drive Universal Spline Socket Set with Mini Flex-Head Ratchet, No. 9723, from Sunex Tools, features universal spline sockets which can be used to turn universal spline, 6-point, 12-point star, square and rounded hexagonal fasteners. This 72 fine tooth mini flex-head ratchet provides swivel arc of only 5 degrees at every ratchet head angle, from 90 degrees to 180 degrees. A 1/4” hex shank to 1/4” drive socket adaptor included, allowing use of sockets with cordless drills and screwdrivers.