Pro Grade Carbide PCB Drill Bits Set, 30 Pcs Spiral Flute Micro Bits For PCB Engraving CNC Metal Stone Jewelry, 0.3 To 1.2 mm Range, Anti Vibration Design, 0.02 mm Precision, Tungsten Steel
✔️ 0.3-1.2 mm holes, ±0.01-0.02 mm accuracy, anti-vibe carbide
Engineered for electronics, SMT work, jewelry making, and CNC maintenance, this 30-piece carbide drill bit set delivers reliable 0.3-1.2 mm holes on FR-4 and CEM-3 boards as well as plastics and metals. Built from premium tungsten carbide with a titanium nitride coating, it combines durability with precise starts for delicate projects.
✅ 30-piece set covering 0.3-1.2 mm holes on PCBs and small components
✅ Tungsten carbide for high hardness and wear resistance
✅ Anti-vibration blade design for stable engraving on FR-4/CEM-3
✅ 135° split-point prevents walking on copper-clad boards
✅ Diamond-ground edges extend bit life by ~40% vs standard bits
✅ TiN coating boosts durability on metal, glass, and plastic
✅ Spiral grooves enable fast, clean chip removal during CNC and 3D printing nozzle maintenance
💡 What is a high-precision carbide PCB drill bit best used for in electronics manufacturing and jewelry making?
These tiny bits are handy for precise PCB holes, SMT prep, and delicate engraving work.
- They excel at 0.3-1.2 mm hole sizes in FR-4, CEM-3, bakelite, and resin
- 135° split-point and diamond-ground edges reduce wandering and breakage
- TiN coating increases longevity when drilling metal, glass, and plastic
- Compatible with pin vises and CNC routers for flexible setups