Pro Grade Tungsten Steel Micro Drill Bits Set 0.3 To 1.2 mm For PCB And Rough Stone Jewelry Engraving Fine Flute CNC Router Bits With Shank 20 Piece Jewelry Punching Precision Bits
✔️ Tungsten steel construction with sizes from 0.3mm (0.012in) to 1.2mm (0.047in), 20-piece set for CNC routing and fine drilling tasks.
This 20-piece micro drill bits set features high-quality tungsten steel tools designed for precise drilling in printed circuit boards, jewelry engraving on rough stones, and CNC routing applications. These bits are commonly used by hobbyists, electronics technicians, and jewelers for detailed work that requires accuracy and durability.
✅ High-quality tungsten steel material for superior wear resistance and hardness.✅ Sizes range from 0.3mm (0.012in) to 1.2mm (0.047in), with 10 different options in the set.
✅ Nano-scale spiral cutting edge reduces force and prevents breakage for better accuracy.
✅ Ideal for PCB, glass, amber, bakelite, and plastic drilling, with a 3.8cm (1.49in) length and 3mm (0.12in) shank.
✅ Comes in a compact 8.7x5x1cm (3.42x1.97x0.4in) box, weighing 74g net for easy storage and transport.
💡 How do tungsten steel micro drill bits enhance precision in machining tasks?
Tungsten steel bits offer key advantages for detailed work like PCB drilling.
- Provide high hardness and resistance to bending for cleaner cuts
- Feature nano-scale edges that minimize heat and improve accuracy in tight spots
- Allow for fast chip removal and reduced burrs in materials like jewelry and plastics
- Support a range of sizes for versatile applications without frequent replacements