Product DescriptionThe Park Tool BBT-35-36 is a precision 36-notch bottom bracket tool designed for installation and removal of select threaded bottom brackets with larger-diameter 36-notch tool fittings. CNC-machined from aluminum and anodized for easy identification, it is a shop-grade tool built for accurate engagement and reliable service. This tool is compatible with select oversized bottom brackets including Praxis Works M35 and Box Two Oversized M35, and features a 3/8" drive for use with a ratchet or torque wrench. Key Features Precision 36-notch bottom bracket socket Fits tool fittings with 51-53mm major diameter Fits 50.7mm minor diameter bottom bracket fittings Compatible with Praxis Works M35 and Box Two Oversized M35 CNC-machined aluminum construction Anodized for easy identification 3/8" drive for use with ratchets and torque wrenches Manufactured in-house by Park Tool Specifications Brand: Park Tool Model: BBT-35-36 Tool Type: External BB Socket Compatibility: 36-notch Size: 51.7mm Drive Size: 3/8" Color: Black Material: CNC-machined aluminum Use: Threaded bottom bracket installation and removal CompatibilityCompatible with: Bottom brackets with 36-notch tool fittings Tool fittings with 51-53mm major diameter Tool fittings with 50.7mm minor diameter Praxis Works M35 Box Two Oversized M35 Not compatible with: Impact drivers or other power tools Included Park Tool BBT-35-36 bottom bracket tool Not Included Ratchet Torque wrench Bottom bracket Additional tools or accessories Warranty and Notes Designed for select threaded bottom brackets with oversized 36-notch tool fittings Features a 3/8" ratchet / torque wrench-compatible drive Not designed for use with impact drivers or power tools Includes only what is shown or described Condition New Genuine OEM product Includes only what is shown or described