20 Pcs Mini Drill Bit Set, 0.3-1.2mm Shank Tungsten Carbide Micro Drill Bits, Tungsten Steel PCB Print Circuit Board Flute CNC Router Bits Shank for Rough Stone Print Circuit Board Jewelry Engraving

• 【High Quality Material】The mini drill bits set is made of high-quality tungsten steel, which has high wear resistance, high hardness, and is not easy to bend. The anti-vibration design of the blade makes it stable and reliable during the engraving process, and has good milling and cutting performance.
• 【High Precision Cutting Edge】The micro drill bits uses a nano-level spiral cutting edge to reduce cutting force, prevent the drill bit from breaking, improve processing accuracy, and have no burrs or debris.
• 【0.3-1.2mm Multiple Sizes】This PCB minature drill bits set contains 10 different sizes: 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, different sizes can meet different needs.
• 【Easy to Use】Mini 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 Usage】0.01-0.05 inch small drill bits set is suitable for processing precision drilling of amber beeswax, circuit boards, CNC engraved jewelry, hardware, plastics and so on.

Specifications: Color: mixed colors Material: tungsten steel Size: as shown Package includes: 20 × PCB engraving drill bits Warm Tips: Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screens.