Birzman

SRAM DUB T47 BB Socket

The Birzman SRAM DUB T47 BB Socket is the precision tool every mechanic—home or pro—needs for smooth, confident bottom bracket service. Designed specifically for external bearing bottom brackets, this socket delivers a secure fit and flawless engagement, so every turn counts.

CNC machined from hardened steel, it’s built to take years of torque without rounding or slipping. The 1/2" drive compatibility means it pairs perfectly with your favorite torque wrench or ratchet, giving you the leverage and control needed for perfect installation or removal.

• Precision fit for SRAM DUB T47 external bearing bottom brackets
• CNC machined hardened steel ensures long-lasting accuracy and durability
• 1/2" drive compatibility for use with standard shop tools
• Streamlined design prevents slipping and protects delicate BB surfaces

Whether dialing in a race bike or maintaining a daily commuter, the Birzman SRAM DUB T47 BB Socket gives every mechanic the confidence that each bottom bracket job is done right the first time.