kitwin 30Pcs Micro Drill Bit Tungsten Carbide 0.3-1.2mm PCB Router Bit Spiral Flute Engraving Drill Bit Rotary Tool for Rough Stone PCB Circuit Board Jewelry Punching

Parts List: 30x Micro Drill Bits Detailed description: Specification: Product name: Micro Drill Bit Material: tungsten carbide Color: colorful (random) Length: 38mm Shank diameter: 3.2mm Size: 0.3mm 0.4mm 0.5mm 0.6mm 0.7mm 0.8mm 0.9mm 1.0mm 1.1mm 1.2mm Blade length: 5.5mm 6.5mm 7mm 9.5mm 9.14mm 10.5mm 10mm 8mm 10.5mm 10.1mm Application: amber beeswax circuit board CNC engraving jewelry hardware plastic processing precision drilling Quantity: 30pcs Note: 1. Due to the difference between different monitors the picture may not reflect the actual color of the item. 2. Please allow slight dimension difference due to different manual measurement. Thank you for your understanding.