-Product Name：pcb Micro Twist Drill

-Product Material: Hard Alloy Tungsten Steel

-Size:0.15mm 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm ,0.7mm ,0.8mm ,0.9mm ,1.0mm ,1.1mm ,1.2mm ,1.3mm ,1.4mm ,1.5mm ,1.6mm ,1.7mm ,1.8mm ,1.9mm ,2.0mm ,2.2mm ,2.5mm

-Shank Diameter: 3.175mm

-Hole Opening Is Efficient, Safe and Accurate, Strong Wear Resistance, Durable, Clean Surface, Not Easy to Break the Knife