Nashbar Premium Tool Kit 2 all-new spanners have removable heads that let you switch out between a pedal wrench, chain whip, track lock ring tool, crank puller and a Shimano lock ring tool All new standard hex wrench set is made of high quality steel Big, beefy 8mm and 10mm hex wrenches give you plenty of leverage for crankset installations 8-,9-,10-speed chain tool is precise and durable 3 steel core tire levers make removing stiff beaded clincher tires a cinch