Pro Grade 10Pcs Micro Carbide Drill Bit Set For PCB Engraving And Jewelry Making 0.3mm To 1.2mm Spiral Cut Bits Tungsten Carbide PCB Drills For Precise Circuit Board Work

Premium 10-Piece Micro Carbide PCB Drill Bit Set 0.3-1.2mm
✔️ 10 sizes 0.3-1.2 mm carbide bits, 3.175 mm shank, long life

These micro carbide drill bits are designed for precise drilling on PCBs and jewelry projects, offering clean holes and long wear for hobbyists and professionals.

✅ 0.3-1.2 mm size range (10 pieces) for PCB engraving and tiny jewelry holes
✅ Shank diameter 3.175 mm (1/8") fits standard chucks
✅ Spiral flute carbide bits provide acute cutting edges and reduce breakage
✅ Long life with grinding 4-5 times, capable of 2000-5000 holes under normal use
✅ Large chip discharge space keeps workflow smooth

💡 What is a micro carbide drill bit used for in electronics and jewelry making? It’s handy for tiny holes and precise work.

• PCB engraving with clean walls and minimal burrs
• Jewelry making with micro through-holes
• Fits standard 1/8" shank chucks
• Carbide edges stay sharp longer for many holes