DUAL-GRIT DESIGN - Features a sapphire ceramic blend on one side (400 grit) for a fine, mirror-like finish and a coarser grey side (240 grit) for quick removal of file marks. Everything is made in the USA. VERSATILE SHARPENING - Perfect for field sharpening axes, machetes, and other tools, ensuring a keen edge with minimal effort. WATER-ABSORBING - The puck readily absorbs and retains water, creating a thin film on the surface to keep the pores free of metal fines for smooth sharpening. FAST CUTTING, FINE FINISH - Cuts quickly to remove material while leaving a fine, smooth finish that easily shaves and enhances tool performance. MADE IN USA – Manufactured entirely in the USA using domestically sourced materials, supporting American workers and delivering dependable, professional-grade tools. This dual-grit ceramic sharpening puck is designed for efficient field sharpening of axes, machetes, and other tools. One side features a 240-grit grey surface for rapidly removing file marks, while the other side has a 400-grit sapphire ceramic blend that brings your tools to a hazy mirror finish. The puck readily absorbs and retains water, forming a thin film on the surface that keeps the stone's pores free of metal fines for smooth sharpening. With Its fast cutting action and ability to leave a fine finish, this puck is the perfect tool for maintaining a sharp edge on all your outdoor gear.