Check the listing for details. 10Pcs 0.8mm Carbide End Mill Engraving Cutter Router Bits 1/8" Shank. Condition: New. Listed at 20.98 USD. Router BitsGeneral Information：[1]APPLICATION: Can engrave PCB, CNC, Circuit boards, Metal, Plastics, Wood, SMT, Fiber glass, Carbon board. Combined with the material to be processed, select an appropriate feed rate and cutting speed to improve the tool life.[2]MATERIAL: Use of ultra-fine grain carbide material with good milling and cutting performance, ensure high work efficiency.[3]FEATURES: High hardness, high wear resistance, high strength. Have sufficient bending strength and wear resistance.[4]CHARACTERISTICS: Sharp cutting edge, milling, hole and plate edge, surface clean, neat, no glitches. The longer the length of the tool clamped by the chuck, the better.[5]STANDARD: Cutting edge diameter: 0.8mm / 0.031"; Shank diameter: 3.175mm / 1/8"; Cutting edge length: 5.5mm / 0.22".