Overview:A pack of 3 V-shape carbide flat bottom engraving bits replacements for your CNC/PCB machinery, these long-lasting bits are made from high quality carbide for a precise, easy cutting experience. High-precision tool grindinglarge capacity Chip elimination, high efficiency & good quality of products A power tool for 2D sculpture, 3D sculpture A Wide Range of Materials can be engraved, including:ABS, Acrylic, PVC, Nylon, Resin Specification: Type: Flat bottom engraving bits Shape: V-shape Degree: 10°, 20°, 30° Shank diameter: 0.125'' (3.175mm) Cutting edge diameter: 0.008" (0.2mm) Total length: 1.3"