- Professional 22mm x 165mm twist drill bit for demanding woodwork - Carbon steel construction with a minimum hardness of 50 HRC, offering high resistance and long service life - Self-feeding tip allows for fast, precise, and effortless drilling - Four-flute design for efficient chip removal and a clean finish - Standard 1/4'' hex shank ensures universal compatibility and quick changes - Ideal for softwood, hardwood, MDF, plywood, construction lumber, and some plastics - Perfect for professional carpenters and DIY enthusiasts seeking quality results - Provides safety and precision, preventing slipping during use - Each drill bit undergoes strict quality control to ensure superior performance