3.0-3.9mm PCB Circuit Board Drill Bit Set Carbide Micro Drill Bit for PCB Printed Circuit Board 1PC Mini Drilling Tool(3.175mm)

6. Symmetrical cutting blade, help to high effective cutting, avoiding drilling offset.Specification:Material: Tungsten CarbideCutting Diameter:3.0-3.9mmApplication: Suitable for processing PCB, normal FR-4, CEM-3 boards, environmental protection board, SMT, CNC, molds, plastic,Circuit board, carbon fiber, composite board, and so on.Package Including:1pc PCB Drill Bit

• 1. Precision machining by high accurate equipment;
• 2. With good milling and cutting performance, ensuring high efficiency;
• 3. High hardness, wear resistance, and intensity; anti-bending;
• 4. To removing chips, with big space and small resistance; Smooth chip removal, less heating , to reduce pollution;
• 5. Sharp cutting edge, reduce cutting force, lower breaking rate and improve the quality of hole wall;