JZK 20 x PCB Drill Bits 0.1-1.0mm, 0.3-1.2mm Micro Engraving Set for Print Circuit Board, Stone, Dremel, Jewelry Making

• Package contains: 20x PCB drill bits, including 20 different size drill bits diameter: 0.1-1.0mm(0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0mm), 0.3-1.2mm(0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 1.0, 1.1, 1.2mm).
• Drill bit set is made of high quality alloy, smooth surfaces, sturdy and durable, and it can use for a long time.
• The dirll bits has sharp cutting edge, milling groove and clean surface, these tool can work quickly and cleanly, no glitches or scrap left.
• Mini drill bits comes with a plastic box, it is easy to use and carry, it will protecte the blade tip goods in the delivery from being damaged.
• Great for 3D printer nozzle cleaning, circuit boards, bakelite, CNC engraving plexiglass, jewelery, metal plastic and so on.

Package contains: 20x PCB drill bits Including 20 different size drill bits diameter: 0.1-1.0mm(0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0mm), 0.3-1.2mm(0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 1.0, 1.1, 1.2mm). The dirll bits has sharp cutting edge, milling groove and clean surface, these tool can work quickly and cleanly, no glitches or scrap left. Mini drill bits comes with a plastic box, it is easy to use and carry, it will protecte the blade tip goods in the delivery from being damaged. Great for 3D printer nozzle cleaning, circuit boards, bakelite, CNC engraving plexiglass, jewelery, metal plastic and so on.