Shop quality bottom bracket tool for damage-free installation and removal of Origin8 Revolvr 12-notch x 36mm BB cups Center post helps to fix and stabilize the tool in to the BB cup 1/2` drive is compatible with ratchet and torque wrenches Required for J&B Part #s 211565 and 211566 Bottom Bracket Tool Silver Shimano HTII 24mm and SRAM GXP 22/24mm 12-Notch x 36mm Origin8 BB90/95 1/2`UPC/EAN/GTIN: 888571069943