Holds socket tool to BB axle to eliminate slippage during removal and installation. New spring preload allows increased flexibility and rotation during useNew design works with square taper and splined axles with M8, M12, or M15 internal spindle threadMade from heat-treated tool steel for the ultimate in strength and lasting performanceUse with Pedro`s Splined Bottom Bracket Socket. Compatible with Pedro`s Pro Socket HandleSocket Holder6460211UPC/EAN/GTIN: 790983296964