Package ContentsComplete set of straight cutters with a shank diameter of 3.175 mm and a blade diameter of 17 mm. Suitable for milling or CNC milling machines. The set includes 10 straight cutters for replacement and long-term use. High-quality materialsThe double straight slot cutting tools are made of high-speed steel with high hardness, wear-resistance, long service life and very sharp cutting edges. These engraving sticks have sufficient bending strength and wear resistance. They can be trimmed, engraved and removed chips easily and quickly, saving you time! Practical Tool These router bits can be trimmed, engraved, removed chips and create a smooth cutting surface. Cutting efficiency ensures high work efficiency. Dual edge cutters designed with a cutting edge ensure a smooth cutting surface and clean chips. milling, hole and plate edge, clean, neat surface, no burr. Easy to storeCutting edge diameter: 3.175 mm (1/8") and cutting edge length: 17 mm (0.67") fits CNC milling machines or cutting milling machines. With a special storage container, you can put it in a box when finished to avoid loss. And it is convenient to carry. Wide Application Double flute cutting tools are not only used for woodworking, CNC milling, CNC milling and many other engraving machines, but also for chipboard, PVC , resin, acrylic, hardwood and resin etc. The slot milling cutter is made of high speed steel with high hardness, wear resistance and long service life, and the cutting edges are very sharp. Easy to carry and store. These engraving bits have sufficient bending and wear resistance, suitable for precision engraving of various materials. Long-lasting use. The cutters can trim, engrave, remove chips and create a smooth cutting surface. Cutting efficiency, ensures high work efficiency. Perfect for milling or cutting machines. Specification: Product type: Double straight slot cutting tools Material: High speed steel Size: 3.175 x 17 mm / 0.12 x 0.67 inch Package includes: 10 * double straight slot cutting tools