Carbide Micro Drill Bits Mini CNC Drilling Bit Set Print Circuit Board Import High Quality Hard Alloy PCB Drill Bit 0.1-1.5mm Description: Carbide micro drill bit, made of tungsten 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 Shank Dia: 3.175mm1/8'' Overall Length: 38mm Size Including: 2.1mm 2.2mm 2.3mm 2.4mm 2.5mm 2.6mm 2.7mm 2.8mm 2.9mm 3.0mm 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. _x000D_