Tungsten Carbide Drill Bits Set 0.3mm, 10 Piece Precision PCB Micro Drill Bit Kit for Electronics Prototyping, Model Making, Jewelry, Plastic And Wood, Spiral Flute for Clean Holes, Great for CNC Tools

0.3 mm (0.012 in) Tungsten Carbide PCB Drill Bits Set, 10-Piece Kit
✔️ 0.3 mm (0.012 in) dia drill bits, 3.175 mm (0.125 in) shank

These precision PCB drill bits are built for micro-hole work in electronics prototyping, jewelry, plastics, and wood. They pair with CNC machines and rotary tools for clean, accurate holes.

✅ 0.3 mm (0.012 in) diameter tungsten carbide bits for PCB or precision drilling
✅ Spiral flute design clears chips for clean holes
✅ Durable tungsten carbide alloy provides long edge life
✅ 3.175 mm (0.125 in) shank fits most hobby CNC tools
✅ 10-piece set covers a range of tiny diameters for detail work

💡 What is a small-diameter tungsten carbide drill bit used for in electronics, prototyping, and jewelry?

- Handy for PCB drilling, micro-models, and jewelry detailing - Improves hole quality with spiral flute that clears chips - Built for long wear in CNC and rotary tool work - Ideal for precise prototyping and hobby projects