Wheels Manufacturing Bottom Bracket Press Essential Kit. Designed to press in all current Wheels Mfg bottom brackets! Our do-it-all Essential Bottom Bracket Press. Economical and easy to use this tool is made up of two machined aluminum handles 1/2″ threaded rod and one machined aluminum frame drift. 1/2″ diameter threaded rod resists bending allowing for the cups to align and press in straight. Drifts can also can be used as a frame bottom bracket shell sizing guide! Machined aluminum handles and drifts Red anodized drifts and handles Steps on drift are marked with diameter sizes Zinc-plated 1/2″ diameter threaded rod Works with BB shells up to 132mm wide Includes one frame drift.