-Choose more accessories you want here-: Lylong Tool Kit 10Pcs Circuit Board Pcb Drill Bits Kit Carbide Tungsten Steel Drill Bit Set 0.4mm Details: * brand new and high quality. *Drilling rig waste discharging space is large, resistance is small, and debris discharging is stable. *Use high-quality materials and fine grinding technology to make the cutting edge er, reduce cutting force and drill breakage, and improve the quality of hole wall. *Design of calibration ring to improve work efficiency *Strictly avoid local holes and ensure the quality of trimming. *Long service life, 2000-5000 drills can be drilled under normal working conditions, and 4-5 times can be regrinded. *It is suitable for drilling of acrylic board, wood board, PVC board, circuit board, aluminium board and other materials. *Color: As Pictures Show *Material: Carbide *Packaging size: 88*53*10mm/3.46*2.09*0.39" *Optional Size: 0.1mm,0.2mm,0.3mm,0.4mm,0.5mm,0.6mm,0.7mm,0.8mm,0.9mm,1.0,mm Package Contents: 10*PCB Drill Bits Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 【Premium Quality Materials】Crafted from the finest materials, our product ensures durability, longevity, and elevate your everyday experience. 【Versatile and Multi-Purpose】Ideal for a variety of applications, this versatile product adapts to your needs, providing exceptional performance in any situation. 【Effortless Operation】User-friendly and intuitive, this product offers seamless operation, allowing you to enjoy its benefits with minimal effort and maximum convenience. 【Home Tools】Lylong Tool Kit 10Pcs Circuit Board Pcb Drill Bits Kit Carbide Tungsten Steel Drill Bit Set 0.4mm