Park Tool BBT-47-12 Bottom Bracket Tool

.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;} The Park Tool BBT-47-12 is a precision CNC-machined aluminum tool designed for the installation and removal of select threaded bottom brackets with 12-notch tool fittings. Key Features: Manufactured in-house by Park Tool for high precision and durability Anodized for easy identification Ratchet/torque wrench-compatible 3/8" drive NOTE: Not designed for use with impact drivers or other power tools.