Park Tool BBT-49.2 Bottom Bracket ToolIt's time you remove and replace your old worn out bottom bracket, so here's the tool for the job. The Park Tool BBT-49.2 Bottom Bracket Tool is precision machined to remove or install 16-notch external bearing bottom brackets. It features a ratchet/torque wrench compatible 3/8" side.Features39mm OD cup Fits: Shimano(R) XTR(R) BB93, Dura-Ace(R) BB9000, Token(R)Manufacturer's Part No:UPC# 763477000828 | Park Tool Bbt-49.2 Bottom Bracket Tool Black, 39mm, 16 Notch