4Mm Dia 17Mm Cutting Length High Speed Steel 2 Flutes Ball Nose End Mill 2Pcs

High speed steel end mill has high hardness, good toughness, wear resistance, and good processing performance, ensuring work efficiency. Only the base substrate without any coatings, good for general purpose milling. Features ball nose end cut, 2-flute design. Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting. Widely used in side milling, end milling, slotting, hole machining, finishing. Suitable for stainless steel, alloy steel, aluminum, carbon steel, tool steel, copper, plastic, etc.. Use on CNC machining centers, engraving machines and other high-speed CNC lathes. The longer the length of the tool clamped by the chuck, the better. Notice: If the clamping length is shorter, you need to lower the feed rate and cutting speed to reduce vibration and extend the tool life. Select an appropriate feed rate and cutting speed to improve the tool life and obtain better processing accuracy and performance.