1 Carbide Drill Bit for Circuit Board,PVC Drilling Tool 10pcs 0.3-3.0mm Description: Carbide micro drill bit, made oftungsten steel, with high hardness, high wear resistance, high strength, resistance to bending, anti-breakage, etc. Features: 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 value, to reduce pollution; 5. Sharp cutting edge, reduce cutting force, lower breaking rate and improve the quality of hole wall; 6. Symmetrical cutting blade, help to high effective cutting, avoiding drilling offset. Specification: Material: Tungsten Carbide Coating: Nano Blue Coated Shank Dia: 3.175mm(1/8'') Diameter: 0.1-3.0mm Overall Length: 38mm Application: 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. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Including: 10pcs Drill Bit 1