
Wholesale Solid Tungsten Carbide PCB Micro Drill Bits Double Flute Single Groove High Precision Industrial Circuit Board Drilling Tools Bulk Supply. High Precision Manufacturing: Micron-level precision testing equipment ensures high stability and accuracy for PCB drilling. Customization Available: Non-standard tools and special samples can be customized according to customer drawings. Wide Size Range: Drills from 0.1mm to 6.5mm; Router and slot bits from 0.4mm to 3.175mm. Premium Material: Made from imported nano-grade powder metallurgy tungsten carbide with SGS environmental testing. Advanced Coating Technology: PVD composite and CVD diamond coatings increase tool life by 2-3 times and reduce friction. Fast Delivery: 3-7 days delivery time with monthly production capacity of about 20 million units. Strict Quality Control: 100% dimensional inspection and edge inspection using advanced automated equipment. Environmental Compliance: Products meet ROHS, REACH, HSF standards and ISO 9001:2015 certification.