Kang&reg; 5Pcs 6mm-19mm Titanium Countersink Steel 90&deg; Flute Chamfer Metric Drill Bit Hot Suitable for low hardness of the workpiece, such as wood, Use for home and industrial During use, cutting edges can better chip evacuation, the cutting edges is not easy to blunt! Size: 6mm/ 10mm/ 13mm/ 16mm/ 19mm Material: High-carbon steel Quantity:5 Pcs