Description: - Countersink bit set is the perfect addition to any woodworkers tool box - High treated steel, Single design for smooth drilling - Constructed of Seven Drills, Seven Countersinks, Seven Stop Collars - Used for smooth and fast cuts when countersinking and counterboring in wood - Industrial Grade Steel for extended life, 100% High Quality Specification: - Material: High- Steel - Dimension: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm - Chamfer Diameter: 3-8mm: 15.8mm/ 0.62inch; 10mm: 18.8mm/ 0.74inch Package Includes: 1x Set (7 pieces) Countersink Drill Bits Note: The colors may be different for the different display, please understand Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid The drill bit is an exclusive tool for adults and men to create a decoration suitable for yourself