50.4mm Inner Diameter BB Tool Bicycle -m30 T47-1b 12t T47 Bottom Bracket Sleeve Tool Aluminum Alloy Bike Installation Remover Repair Tool T47-1B 12T BB Tool Type: Bike Bicycle BB-M30 T47-1B 12T Bottom Bracket Install Remover Tool For praxisdiy Guide design]The tool has a guide design, which fixes the bottom bracket or sleeve inside and outside when used, eliminating damage to the bottom bracket caused by excessive force or incorrect method. Ensure a perfect fit and prevent damage to the bottom bracket of the bicycle Material: High quality aluminum alloy material, wear resistant, high strength, sturdy and durable. Easy to Use: Use with 10 Allen wrench. - Type: Bike Bicycle BB-M30 T47-1B 12T Bottom Bracket Install Remover Tool For praxisdiy - Material: High quality aluminum alloy material, wear resistant, high strength, sturdy and durable. Specification: - Material: aluminum alloyPackage Includes:1 Bottom Bracket ToolNote:Please allow slightly errors due to manual measurement and different monitors. Pro Professonal Bottom Bracket nstall and Removal Tool Bke for BB86... Praxis Works M30 Bottom Bracket for T47 Internal Frames I.B. | Tree Qualtiy: Tight tooth groove, will not fray your bottom bracket.