Features:* * Made of material, and practical to use * 3D engraving for CNC engraving machine, manual trimming machine, plywood, hardwood, plastic, MDF, carbon steel, Inconel, stainless steel, etc.* R0.25mm-1mm tapered end mill 1/8" handle CNC engraving machine wood engraving machine * Applicable material: 55HRC, long lifespan, reduce tool changes, save production time Specification:* Material: Solid Tungsten Carbide * Tool Holder Diameter: 4MM (Approx.) * Coating: Aluminum Nitride Titanium * Processing Material Hardness: HRC55 * Flute: 2 Flute * Seat Length: 15mm (Approx.) * Total Length: 1-1/2mm * Tool Holder Diameter: 1/8" (Approx.) * Optional Radius: 0.25mm, 0.5mm, 0.75mm, 1.0mm Package Contents:1 *Nose Ball End MillNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.