This precision-engineered bike crank arm cap removal tool is designed specifically for SRAM DUB/BB30 and Shimano XTR M9100 systems. Featuring an 11-notch design machined from durable aluminum with a striking blue anodized finish, this specialized tool ensures proper grip and torque application when removing or installing crank arm caps. The tool's ergonomic design prevents slippage during use, while its compact size makes it perfect for both home mechanics and professional bike shops. Compatible with modern crankset systems, this essential maintenance tool helps protect your valuable components during service. The clearly marked directional arrows ensure correct installation and removal, preventing potential damage to your bike's components. Keep your bicycle running smoothly with this professional-grade workshop tool that's built to last.