Item Type: Engraving Bit Material: High speed steel Color: Silver Specification: 3.175 x 60 x 0.1 x 40L Shank Diameter: Approx. 3.175mm / 0.13in Tip Diameter: Approx. 0.1mm Total Length: Approx. 40mm / 1.6in Application: Wood carving Applicable Machine Tool: Grinder Package List 1 x Engraving Bit 1Made of highquality highspeed steel, with good cutting edge strength and toughness, and strong vibration resistance. 2The milling cutter is a pointed engraving type, which is used on a grinder to mill an object into a notch with a certain angle. 3The milling cutter is finely polished, the surface finish is good, the milling is glossy, and the speed is fast. 4The cutter bit has high hardness, it is not easy to warp or break during processing, and the cutting is glossy and without burrs. 5Engraving milling cutters are standard in size, installed on power tools, and often used for wood carving.