Features: 100% brand new and high quality. These titanium coated tungsten steel cutter bits are hard and very durable. Incisive blade, smooth and no burrs, more smooth chip-removal. All cutter bits are well packed in plastic box for convenient storage. Widely used for cutting hardwood, density board, double color board, acrylic and plastic board. Specifications: Material: Tungsten steel Surface Finishing: Titanium coating Type( Optional ) Shank Diameter Angle Tip Quantity Weight 1 3.175mm 10 0.1mm 10pcs 30g/1.1oz 2 3.175mm 15 0.1mm 10pcs 30g/1.1oz 3 3.175mm 20 0.1mm 10pcs 32g/1.1oz 4 3.175mm 25 0.1mm 10pcs 32g/1.1oz 5 3.175mm 30 0.1mm 10pcs 32g/1.1oz 6 3.175mm 30 0.2mm 10pcs 34g/1.2oz Package list: 10 * Cutter Bits