High Strength Aluminum Alloy : Constructed from sturdy aluminum alloy, this tool is built to last, offering unparalleled durability and resistance against wear. Double O-Ring Sealing : Protects your lock ring from damage by securing the tool firmly in place during use, preventing any unwanted movement. Easy to Carry : At only 40g, this tool is incredibly lightweight, making it convenient to carry around and perfect for impromptu bike tune-ups. Versatile Option : A flexible choice for cyclists with 12 speed direct-mount cranksets, compatible with various Shimano Heal M7100 M8100 M9100 Xt Slx models. Smooth Removal Process : The tool's design ensures a frictionless removal process, making sprocket adjustments quick and hassle-free. Elevate your bike maintenance skills with our crankset installation tool. Engineered with precision and functionality in mind, it's tailored for Shimano Heal M7100 M8100 M9100 Xt Slx bikes featuring 12 speed direct-mount cranksets. The tool's high-strength aluminum alloy body combines with its CNC machining to offer a precise fit, ensuring a smooth removal process without compromising component integrity. Its double O-ring sealing mechanism adds an extra measure of safety during use, while its lightweight construction ensures it's a breeze to carry. Whether you're a professional mechanic or a hobbyist, this tool is your partner in maintaining your bike's peak performance.