H4 / H5 / H6 Hex Wrench + Brake Spreader
(Especially suitable for thru-axle cassettes)

Modern bicycle cassettes increasingly utilize hollow axle systems for weight reduction, eliminating the use of quick-release mechanisms. As a result, removal and installation now require dedicated tools. This lightweight, precision-engineered tool is specifically designed to securely remove or press-fit hollow axle components without damaging the frame or drivetrain. It is ideal for use in professional workshops or OEM assembly lines.