General description These 5pcs Wood Chamfer Drill Bit Countershaft HSS Taper Drill Bits are designed for optimal performance in wood processing. They offer excellent heat resistance and durability, ensuring high drilling capacity and good toughness. Technical specifications Blade material: HSS (High-Speed Steel) Tungsten steel Color: Silver + Orange Sizes: 2.8x8mm, 3.0x8mm, 3.2x8mm, 3.5x8mm, 4x8mm Rod type: Round stem Diameter of stem: 8mm Note: Please allow 1 to 3mm error due to manual measurement and slight color difference caused by light. Compatibility and accessories Package includes: 5 pcs drill bits and 1 pc hex key