Alloy tool steel socket is fully machined to precise tolerances for an exacting professional-level fit and optimally heat treated for maximum strength and longevity Features extra-long splines for superior engagement, quick-spin knurling, a 3/8" square drive for use with torque wrenches, a 24mm external drive for use with Pedro's Pro Socket Handle and pedal wrenches, and a 19.8mm internal diameter with 21.5mm depth Fits all Shimano, Sram, SunRace, SunTour, Chris King, and other HG standard cassette lockrings, disc brake lockrings, and other similar fittings with 12 splines and 23.5mm outside diameter including some RockShox suspension fork top caps
