YUENTOEN 10Pcs Micro Drill Bits, Tungsten Carbide Twist Drill Bits 0.3mm to 1.2mm PCB Drill Bit Set with Plastic Box Cutting Tool for Print Circuit Board, Beeswax, Rough Stone, Jewelry, CNC Engraving - MDB-01

• High Quality: These micro drill bits are made of tungsten steel, highly wear resistance, high hardness, fine grinding process makes bit more sharp cutting edge, reduce cutting force and broken drill, improve the quality of hole wall Size and Quantity: This set contains 10 different sizes drill bits, the cutting edge diameter is 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm. You will get 1 pcs for each size to meet your different needs High Precision: Tip spiral flute tungsten carbide drill bits can milling groove and clean surface has large chip removal space, low resistance no glitches or scrap left. Attention: Don't use on too hard material, like high hardness iron Good Package: Package with high quality plastic box, easy carry and better protection keeps the blade tip goods in the delivery from being damaged. You can easily find and grasp the required drill with plastic box Wide Application: The PCB drill bit sets are great for punching at printed circuit boards, cutting and engraving and worked on acrylic, PVC, nylon, resin, fiberglass, jewelry, metal plastic and other precision drilling