The 4 in Diamond Sharpening Stone features an interrupted diamond surface that collects metal filings to maintain a clean, efficient sharpening area. A 750 grit diamond coating provides fine sharpening for maintaining edges on a variety of blades and tools. The integrated micro-tool pad allows precise work on tips and small cutting tools, while a straight-line groove accommodates hooks and pointed objects. A protective cover doubles as a base extension during use for added stability. Lightweight and compact, it is suited for small to medium knives and everyday carry blades.