Material: YG6 alloy cutter head, 45# carbon steel cutter body, pulverized surface. Precise cutting reduces debris and burrs, with anti-backlash design. High-precision, stable and efficient grinding technology. Multi-function 4-blade design allows quick and clean cutting of project materials, surface cleaning of spoilboards, and creation of a base surface perpendicular to the router motor. Suitable for cutting, slotting, and grooving. Can be used to flatten live edge boards too large for a planer. Ideal for projects of any complexity. These cutters are suitable for cutting solid wood, particle board, plywood, MDF, and various wood composites. Avoid cutting black metals and non-wood materials such as steel, iron, and sand. Compatible with CNC routers, other routers, handheld and table-mounted portable routers, wood engraving machines, trimming machines, and similar equipment. Precision cutting with 8mm shank, 51mm cutting diameter, 51mm cutting height, and 12.7mm cut depth. Scope of delivery: One piece. Note: Measurements are manually taken; allow 13 cm variation. Color may vary slightly due to lighting and screen differences. Actual product may differ slightly in appearance.