5Pcs 0.047 in Cutter Dia,Solid Carbide Core Burr End Mills Roughers Cut Coating Roughing Milling CNC Bit for SMT Mould Plastics Composites Acrylic Hardwood PCB PVC MDF Aluminum Phenolic Fiber

Mechanical failure in micro-milling often stems from poor chip clearance and low material hardness, leading to snapped bits and ruined workpieces. When machining abrasive substrates like FR-4, carbon fiber, or phenolic, standard steel bits dull rapidly, generating excess heat that melts plastics and delaminates composites. WKSTOOL Solid Carbide Core Burr End Mills utilize a proprietary corn-tooth architecture to solve these engineering challenges. This design breaks chips into smaller fragments, facilitating rapid evacuation through the flutes and maintaining a lower thermal profile at the cutting interface. The ultra-fine grain carbide substrate provides the rigidity required to prevent deflection during high-speed CNC routing. Each cutter undergoes precision grinding to ensure a sharp, durable edge capable of delivering a clean surface finish on hardwood, acrylic, and aluminum. Whether you are de-paneling PCBs or engraving complex molds, these roughing bits provide the industrial-grade reliability demanded by professional CNC operators.

• ELIMINATE SUBSTRATE DELAMINATION: One set handles everything from phenolic and FR-4 to hardwood and aluminum, The staggered corn-tooth geometry shears through tough fibers without lifting layers or leaving rough edges on sensitive PCB, SMT and carbon fiber projects.
• INDUSTRIAL-GRADE WEAR RESISTANCE: Solid carbide construction maintains a sharp edge significantly longer than steel, ensuring consistent slotting depth across high-volume production runs.NANO-COATED SQUARE CUT PRECISION, Advanced surface treatment reduces the friction coefficient, allowing for smooth roughing operations in non-ferrous metals like aluminum and high-density MDF.
• SUPERIOR CHIP EVACUATION: Engineered flute spacing prevents resin buildup and melting when routing acrylic or PVC, keeping the workpiece clean and the tool cool under high RPM
• PRECISION SHANK STABILITY: The shank is ground to exacting tolerances to prevent runout, protecting the fragile tip from snapping during complex desktop MINI CNC engraving.
• Cutter Size: 0.047 in Cutter Dia (1.2mm) / 0.14 in Length of Cut (3.6mm) / 1/8 in Shank Dia. / 1-1/2 in Overall Length / Package：5pcs/set