YINGHUA 5Pcs 4x25mm UP DOWN Cut Two Flutes Spiral Carbide Mill Tool Cutters

5-piece carbide mill set for CNC routers

This five-piece set supplies 4 mm by 25 mm two-flute spiral carbide cutters designed for CNC router use. The up-and-down compression geometry suits woodworkers and sign makers who need clean edges on both faces of sheet material. Tungsten steel construction provides the hardness required for repeated production runs. The cutters arrive new and ready for industrial cutting applications.

Capacity and headroom for sheet goods

Each cutter handles wood, plywood, density board, solid wood and particleboard in a single pass. The 25 mm cutting length accommodates standard sheet thicknesses while the compression design reduces tear-out on top and bottom surfaces. Harder timbers or abrasive composites will dull the flutes faster, so plan for tool rotation during long jobs. The set gives enough cutters to keep one in the spindle while others are sharpened.

Router interface limits and safety

The tools fit standard CNC router collets that accept 4 mm shanks; verify your machine's clamping range before purchase. Maximum feed rates depend on spindle power and material density, so start conservatively and increase until finish quality drops. Safety instructions restrict use to persons aged 18 and over and limit the cutters to industrial cutting tasks only. Do not use the tools for hazardous materials or non-cutting operations.