Shop quality bottom bracket tool for damage-free installation and removal of Origin8 Revolvr 12-notch x 36mm BB cupsCenter post helps to fix and stabilize the tool in to the BB cup1/2` drive is compatible with ratchet and torque wrenchesRequired for J&B Part #s 211565 and 211566Bottom Bracket ToolSilverShimano HTII 24mm and SRAM GXP 22/24mm12-Notch x 36mmOrigin8 BB90/951/2`UPC/EAN/GTIN: 888571069943