These tungsten steel end mill bits are designed for precision and durability, making them ideal for CNC machines and PCB engraving. The material ensures performance, allows for efficient cutting and reduced wear. for professionals and hobbyists alike, these bits provide accurate cuts every time. Features -Color:Silver -Material:Tungsten steel -Size:4.00X0.30X0.30cm/1.57X0.12X0.12in -Note: Shank Diameter: 3.175mm/1/8 inch; Cutting edge diameter: 0.8mm / 0.031 inch -end mill bits: made from tungsten steel, these end mill bits offer exceptional hardness and wear resistance, ensuring durability and reliability for demanding machining tasks -Precision cutting end mill bits: engineered with advanced cnc technology, these bits deliver precise cuts, enhancing productivity and ensuring smooth finishes on various materials -drill bits for carving: for engraving and milling on pcb boards, and other hard materials, making it ideal for professional and hobbyist projects -Compact drill bits for carving: lightweight and portable, these bits are compatible with a wide range of engraving machines, providing flexibility and ease of use during operations -Enhanced efficiency: designed for high speed processing, these bits reduce cutting time while maintaining accuracy, boosting overall work efficiency Package list: 10 x End Milling Engraving Bits