If you have even battled with an over-tightened Shimano® and ISIS Drive® splined 20-tooth bottom bracket cup, you know why Pedro\'s created the BB Socket Holder. Though these types of bottom brackets proved themselves as the standard for many years and continue to be found on many bikes, the tendency for these shallow splines to slip during removal or installation has resulted in more than a few expletives, high frustration levels, and worst of all, injuries. The Pedro\'s BB Socket Holder provides a simple, shop quality tool that solves this problem. This tool was designed to work with Pedro\'s Splined Bottom Bracket Socket to eliminate slippage during removal and installation. Made from heat-treated tool steel for the ultimate in strength and long-lasting performance and compatible with Pedro\'s Pro Socket Handle. Key Features: Holds socket tool to BB axle to eliminate slippage during removal and installation,Works with square taper and splined axles with M8 or M15 internal spindle thread,Made from heat-treated tool steel for the ultimate in strength and long-lasting performance,Use with Pedro\'s Splined Bottom Bracket Socket. Compatible with Pedro\'s Pro Socket Handle.