20 Pcs Micro Drill Bit Set Micro Drill Bits Tungsten Steel PCB Print Circuit Board Flute CNC Router Bits Shank for Rough Stone Jewelry Punching Engraving (0.1-1.0 mm)

Features

• 【Premium Material】The micro drill bit set is made of high-quality tungsten steel, with high wear resistance, high hardness, not easy to bend, and has good milling and cutting performance.
• 【High-precision Cutting Edge】The micro drill bit adopts a nano-scale spiral cutting edge, which reduces the cutting force, prevents the drill from breaking, and improves the machining accuracy.
• 【0.1-1.0mm Multiple Sizes】This PCB drill bit set contains 10 different sizes: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, different sizes to meet different needs.
• 【Easy to Use】Micro drill bits are designed with shock-proof design, stable and reliable engraving process, fast and clean work without burr, large chip removal space, low drilling heat, very practical.
• 【Wide Application】These tungsten carbide drill bits are ideal for drilling holes in printed circuit boards, CNC engraving glass, amber beeswax, bakelite, jewelry, plastic and other precision drilling.