Trend 3 Inch Credit Card Diamond Sharpening Stone, Double Sided 300 & 600 Grit, Compact Size with Storage Wallet, DWS/CC/FC

Amazon

DOUBLE-SIDED SHARPENING: 300 Grit (45 micron) for restoring blunt edges & 600 Grit (25 micron) for refining cutting edges. Ideal for router cutters, carbide inserts, and carving tools. COMPACT & PORTABLE: PORTABLE CONVENIENCE: Credit-card sized 3-inch sharpening stone fits in a wallet, perfect for on-the-go use in workshops, gardens, homes, or job sites. LONG-LIFE MONOCRYSTALLINE DIAMOND: Nickel bond electroplated diamond ensures excellent adhesion and durability, providing exceptional sharpening life for your hand tools. SIMPLE & EFFICIENT: 1mm steel plate minimizes flex for bench and handheld use. Achieve professional results by applying gentle pressure. MULTIFUNCTIONAL TOOL: Hone carbide and HSS tools such as router bits, slim chisels, and carving instruments. Ideal for sharpening smaller blades when a bench stone proves too large., Weight: 0.15 pounds, Manufacturer: Trend

ManoMano

Features Fine 600 grit (25 micron) Coarse 300 grit (50 micron). Complete with black storage wallet. Guaranteed for five years when used with Trend Lapping Fluid. Ideal for fluted, shaped & small router bits, carbide or HSS, turning tools, chisels, plane blades, carving tools & all general tooling. Plate thickness 1.6mm for extra stability. Grit sizes clearly marked on each surface. Specification Size: 84 mm x 50 mm x 1.6 mm Grade: Fine & Coarse Grit: 600 & 300 (nom. 25 & 50 micron) Standard Equipment 1x Trend DWS/CC/FC Credit Card Double-Sided Diamond Stone