[High Quality Material] Our CNC milling cutters are made of high hardness wear-resistant tungsten steel, which is less breakable than ordinary carbide CNC drill bits. [Efficient Cutting Performance] These precision mirror CNC engraving bits are designed with scientific chip removal to prevent wood chips from affecting your work. The cutting speed is fast, and the cutting surface is flat and smooth. [Individual Packaging] 4 pcs per pack, each individually packed. Includes 1 x 1.5mm detail drill, 1 x 2.0mm profile drill, 60° and 90° V-groove drills. [Wide Application] These CNC milling cutters are suitable for MDF, PVC, acrylic, solid wood, plywood, organic board, etc. Widely used for cutting, engraving, grooving, drilling, and milling. Color: silver Material: tungsten steel Package Contents: 4 x Bits Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.