Park Tool Shop Cone Wrench

The SCW-28 is specifically engineered to fit 20mm through-axles, particularly those found on high-performance Shimano hubs.

The Y-head design is a deliberate engineering choice that concentrates more tool steel in the areas that experience the highest stress. This provides the extra strength and durability required to handle tight, low-clearance cone flats without bending or rounding out the tool.

This tool is purpose-built for low-clearance adjusting nuts and cone flats. While it might fit other 20mm nuts, it is optimized for the specific torque and clearance requirements of bicycle hub maintenance.

The SCW-28 is built to professional standards. Its high-quality tool steel construction is designed to withstand the frequent, daily use expected in a professional bike shop environment.

Despite its thin profile, which is necessary to fit into tight spaces, the wrench is exceptionally durable. The high-quality tool steel and reinforced Y-head design ensure it maintains its shape and integrity even under the pressure of stubborn adjustments.