Precisely machined for a perfect fit, the LRT-3 removes and installs the lockrings that retain direct-mount chainrings found on some SpecializedA(R), CannondaleA(R) and FSAA(R) modular cranks. Features a 36 mm hex fitting for use with the Park Tool TWB-36 Crow Foot and a torque wrench (each available separately) to achieve proper torque. Heat-treated and plated 4140 steel construction ensures durability and long life. Fits lockrings with 47-48 mm outside diameter and 4 or 8 notches including: CannondaleA(R) Hollowgram FSAA(R) BB386EVO FSAA(R) BB392EVO FSAA(R) MegaExo SpecializedA(R) S-Works