End Mill CNC Router Bit Ball Nose Flat Straight Flute Engraving Bits Blue Coating CNC Milling Tools Features: 1. High hardness, high wear resistance, high strength. Have sufficient bending strength and wear resistance.Use of ultra-fine grain carbide material with good milling, cutting performance, ensure high work efficiency. 2.High hardness, high wear resistance, high strength. Have sufficient bending strength and wear resistance. 3. Can be used with 1610, 3018, 3018pro and other engraving machines. 4. Advantage: Sharp cutting edge, milling, hole and plate edge, clean surface, neat, no glitches. 5. Range of processing:PCB, SMT, CNC, Mould, plastic, carbon fiber, wood, printed circuit board, other precision parts processing. Specification: Type: Engraving Bit Set Material: Tungsten Carbide Coating: Nano Blue Coated Shank: 1/8''(3.175mm) Size: 10pcs 3.175x17mm Flat End Mill 10pcs 3.175x17mm Ball Nose Mill 10pcs 0.8-3.0 Milling Cutter 10pcs 3.175mm Edges Engraving Bit Note Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Including: 1 Set CNC Engraving Bit