50PCS Carbide Micro Drill Bits Set 0.1-1.0mm PCB Driiling Bit for CNC Engraving<br> Product Features:<br> Precision machining by high accurate equipment;<br> With good milling and cutting performance, ensuring high efficiency;<br> High hardness, wear resistance, and intensity; anti-bending;<br> To removing chips, with big space and small resistance<br> Sharp cutting edge, reduce cutting force, lower breaking rate and improve the quality of hole wall;<br> Symmetrical cutting blade, help to high effective cutting, avoiding drilling offset.<br> Note:<br> Suitable Materials:<br> PCB, normal FR-4, CEM-3 boards, environmental protection board, SMT, CNC, molds, plastic, stainless steel and precision hardware processing;<br> Circuit board, carbon fiber, composite board, and so on.<br> Product Specification:<br> Type: PCB Drill Bit<br> Meterial: Carbide<br> Shank: 3.175mm(1/8')<br> Size Including: 0.1mm 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm 0.7mm 0.8mm 0.9mm 1.0mm each size 5PCS<br> Package Included:<br> 50PCS PCB Drill Bits Set