3mm PCB cutting Fishtail milling Engraving Drill Bit

Features:

Micro PCB drill bits, used to cut a PCB
Made from tungsten steel with high hardness and wear resistance, not bend or break easily
Micro drill bits can prevent resistance, smooth to drill holes
Sharp cutting edge can reduce cutting force and improve drilling quality
Strictly symmetrical cutting edge, ensuring high efficient drilling and avoids deviation
Applied to PCB, SMT, mold, hardware processing, electronic industry, etc