10pcs Micro Drill Bits PCB Carbide Print Circuit Board Set for CNC Engraving (0.3mm)

Excellent performance-Drill bit has a large scraps discharge space,reduce cutting force and broken drill,little resistance and smoothly during the scraps discharge,improve the quality of hole wall. Size: Length-38.1mm / 1.5";Cutting Edge Diameter: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 1.2mm, 1.3mm, 1.4mm(Optional);Shank Diameter: Approx 3.175mm;Box Size: 8.7 x 5.3cm / 3.42 x 2.08". Versatile and multipurpose- Drills bits are perfect for delicate drilling through hard materials for model engineering, jewelry repairs, craft work, suitable for PCB, SMT, CNC, mold, sculpture, plastic, copper, stainless steel. Invincible configuration- These bits are made of high quality materials,work fantastic on PCB boards. Sharp and twisted flute will make the drilling be more easy. Impeccable practicability-PCB drill bits are easy to change out and do a great job cutting through the PCB for solder holes.Come in a great storage container that is easy to grab the drill bit you need when you need it.