5pcs 0.3mm to 1.2mm PCB Mini Drill Bit Tungsten Steel Carbide for Print Circuit Board CNC Drill Bits Machine

|Item Describe: 1. 100% Brand New and High Quality 2. Type: Clean the special drill bit 3. Material: Tungsten steel 4. Size: 0.3-1.2 mm 5. Color: Multicolor (Send Ramdom) 6. Ten mini storage boxes : 0.3-1.2MM (0.3-0.4-0.5-0.6-0.7-0.8-0.9-1.0-1.1-1.2) 7. Carbide (tungsten steel) material, with high hardness, high wear resistance, anti-bending, anti-damage 8. Processing range : Applicable to the circuit board, electronics, SMT, mold, metal processing, communications 9. Drill bit chip space: chip resistance is small, smooth chip removal, drilling heat a small, reduce drilling 10. Cutting edge strictly symmetrical: conducive to efficient cutting, to avoid drilling offset 11. Bbased on customer application tool design: drill variety, to meet the needs of different applications. Drill all parameters, such as core thickness, core taper, 12. Long life, it can drill 2000-5000 pcs under normal working conditions, also can return grinding 4-5 times Feature : As a result of the use of nano-technology and advanced grinding technology, drill bit cutting edge is more sharp than before, can reduce the cutting force, reduce the drilling rate, improve the quality of the hole wall;|

• 5pcs 0.3mm to 1.2mm PCB mini drill Bit tungsten steel carbide for print circuit board cnc drill Bits Machine