30Pcs 0.3-1.2mm Tungsten Carbide -Drill Bits Set Tungsten Steel PCB Print Circuit Board Flute CNC Router Bits

Safe: PCB drill bits are made of quality tungsten carbide not easy to wear and bend; The anti-vibration design of the blade makes it stable and reliable during the engraving process Improve precision: mini drill bits set adopts pointed cutting edges; The spiral cutting edge can reduce the cutting force prevent the drill from breaking and improve the machining accuracy no burrs or debris Size information: PCB drill bit set contains various sizes of drill diameter 0.3 mm/ 0.012 inch 0.4 mm/ 0.016 inch 0.5 mm/ 0.020 inch 0.6 mm/ 0.024 inch 0.7 mm/ 0.028 inch 0.8 mm/ 0.032 inch 0.9 mm/ 0.035 inch 1 mm/ 0.039 inch 1.1 mm/ 0.043 inch 1.2 mm/ 0.047 inch each size has 3 pieces totally 30 pieces in 3 boxes Wide usage: 0.01-0.05 inch drill bits set is suitable for processing precision drilling of amber beeswax circuit boards CNC engraved jewelry hardware plastics and so on colour: silver Material: tungsten carbide Package Contents: 30 x Mini drill bits Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.