Specifications: Shank Diameter: 3.175mm / 1/8" Tip Size: 0.2mm / 0.008" Flute Length: 15mm / 0.59" Total Length: 28mm / 1.1" Cutting Angle: 45 Degree Material: Solid Carbide (Tungsten Steel) Package Content: 10pcs x Wood Engraving Bit Descriptions: Sharp edge provides smooth cutting, no glitches. 1/8" (3.175mm) shank fits most small rotary tools and grinders when finishing, grinding, and shaping the work with precision. Can be used for carving, cutting, engraving, milling, slotting, 2D or 3D sculpturing, surface machining, etc. The deep angle and sharp point allows for precise details. Made of solid carbide (tungsten steel), high hardness, wear resistance, good toughness and heat resistance. Provide good cutting strength and drilling effect. Fast engrave and cut to improve efficiency. Suitable for PCB, MDF, ABS, PVC, wood, plywood, hardwood, color plates, acrylic, nylon, plastic, hardwood, MDF, copper, aluminum etc.. Notices: Need to increase the speed and reduce the feed rate to avoid tool breakage, when engraving harder materials.