Without the additional adapters from my Park Tool BB90 Bearing Tool, I would have struggled to fit a SRAM DUB MTB 32 bottom bracket. Without those adapters, I found it nearly impossible to keep the bearings properly aligned. Fortunately, I didn't cause any damage. I've given this product 2 stars due to its high price tag and because, without the additional items, I could have severely damaged my bike's frame. There must be better options available at a much lower cost.