Excellent value tool for the latest external bottom brackets.
�Crank Adaptor Tool for Shimano Hollowtech II Cr-Mo Steel
�Heat Treated.
�For use with 8mm hex key.
�Use one way to tighten the cups into the frame with an 8mm allen key.
�Turn the tool around to tighten the pre-load cap on the left hand crank.
�Not suitable for Truvativ bottom brackets.