Atoplee 10pcs Carbide Micro Drill Bits 0.3mm-1.2mm CNC PCB, Carving Drilling 10pcs Brand New Unused Carbide PCB CNC Drill Bits replacements for your  CNC machines and any Handheld tool: Dremel, Jewelry, these long-lasting  bits are made from high quality tungsten steel for a precise, easy  experience 10pcs Carbide Micro Drill Bits:0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2mm. Material: high-grade Carbide Shank diameter (SD): 3.175mm Color: As picture shown 10pc Cutting edge diameter (CED): 0.3-1.2mm Total length: 38mm Package Included: 1 x 10pcs Carbide PCB Drill Bits