10pcs 0.8-3.175mm Milling Cutter Drill Bits Set Carbide DIY PCB Circuit Board Drill Bit Woodworking Craft Repair Tool for Drilling PolishingFeature: The use of ultra-fine grain cemented carbide material, with good milling, cutting performance, to ensure high work efficiency. It has sufficient bending strength and wear resistance, high hardness, high wear resistance and high strength. Sharp, milling, orifice edge, surface clean, neat, no burr. Specification: Material: carbideShank diameter: 3.175mmSpecification: 0.8-3.175mm (0.8, 1.0, 1.2, 1.5, 1.6, 1.8 , 2.0 , 2.4, 3.0, 3.175)Plastic box size: 88*51*10mm/3.46*2.01*0.39inNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 10 X Drill Bits