Enhance your drilling and engraving projects with these high-performance tungsten steel milling bits. Designed for use with CNC routers and engraving machines, they offer exceptional accuracy and durability. The construction provides excellent heat resistance, ensuring consistent performance even during extended use. Suitable for both professional and DIY applications, these bits are versatile and reliable. 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 -High hardness drill bits: tungsten steel construction provides hardness and resistance to wear, making these bits for high strength machining applications -Accurate performance: cnc precision ensures consistent cutting accuracy, delivering and smooth finishes for detailed engraving projects -Broad usability: drill bits designed for use on pcb boards, and other hard materials, these bits are versatile tools for both professional and diy tasks -Portable and convenient: drill bits is lightweight design allows for easy handling and compatibility with various engraving machines, enhancing operational flexibility -Optimized cutting speed: drill bits engineered for efficient processing, these bits minimize cutting time while maintaining high precision, improving workflow efficiency Package list: 10 x End Milling Engraving Bits