ITEM NAME:10pcs 30 Degree 0.1mm V-Shape Engraving Bit Tungsten Steel PCB CNC Router Tools 10pcs V-Shape Tungsten Steel 30 Degree 0.1mm PCB Engraving Bit CNC Router Tool SPECIFICATIONS.(4) High precision grinding technology, sharp edge cutting with a smooth, no burr. Material: Tungsten Steel. Angle: 30 degree. 1) 100% new and high quality. 2) Color may vary slightly due to the color setting of each individual monitor.