The 744 is used in conjunction with the Park Tool HTR-1 Head Tube Reaming and Facing Set to ream bottom bracket shells that use the BB86/92, PF41, or PF24 standard.

• Sized for bottom brackets that use the BB86/92, PF41, or PF24 standard
• 40.98 mm outer diameter
• Requires use of the 750.2 Centering Cone Adapter
  

NOTE: Always use cutting fluid such as Park Tool CF-2 when machining.