General description The Trend Countersink Drill Bit Set is a versatile 5-piece wood countersink set designed for quick change and efficient drilling. Made from high-quality materials, this set is perfect for achieving precise holes in various materials. Technical specifications Material: 4241 high-speed steel for drill parts Handle material: Carbon steel Sizes included: 5# (0.2cm), 6# (0.2cm), 8# (0.2cm), 10# (0.2cm), 12# (0.2cm) Compatibility and accessories Compatible with drills that have tension support or hinges Usage Ideal for drilling holes in hardwood and plastic boards