The tool is tungsten cobalt alloy ultrafine particles (tungsten carbide), high hardness, good wear resistance. High strength, bending resistance, cleaning, neat, no burr, and other advantages. Mainly used for: PCB gong machine, engraving machine. CNC precision milling equipment. Processing range: PCB, SMT, CNC, mold, plastic, copper, stainless steel, acrylic, PVC, medium density fiberboard, wood, plastic sheet, color and other precision parts processing. Colour: silver + yellow Material: metal Size: 17mm * 3.175mm Package Contents: 10 * milling cutter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.