Package Includes: our package consists of 20 end mill bits for continuous, uninterrupted work; Our offer ensures you have enough tools at hand for your project needs, eliminating the requirement for frequent replacements Standard Size: these end mill bits come with cutting edge diameter of 1mm / 0.039 inch, shank diameter of 3.175mm / 1/8 inch, and a cutting edge length of 7mm / 0.28 inch, offering high accuracy for your project needs Material: crafted from finest ultra-fine grain carbide for durability, these end mill bits are sturdy enough to withstand regular use; They offer the nice blend of strength and toughness, making it ideal for your milling and cutting requirements Applications: these end mill bits come with diverse cutting features, such as sharp cutting edges for milling, hole and plate edge for clean and neat surfaces; Ensuring satisfactory results, they are ideal for PCB, CNC, circuit boards, metals, and a range of other materials Versatile: suitable for engraving a wide range of materials, including PCB, CNC, circuit boards, metal, plastic, wood, fiberglass, and carbon board; This versatility makes them highly valuable for diverse manufacturing and DIY projects Colour:As Shown Material:Metal Package Contents: 20 * r8 collet set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.