Premium Wood Drill Bit - Made of high carbon steel with a cutting hardness of at least 50 HRC, reliable performance. Superior Performance - Four-blade design for faster drilling and chip removal. With a self-feeding pilot tip for fast and accurate drilling in wood. Application: 1/4 inch hex shank fits both electric drills and bench drills, for quick bit changes and to prevent the bit from slipping. Works on Most Wood Materials - Twist drill bit for professional machining of softwood, hardwood, MDF, timber, plywood, plastics and other wood materials. HOW WE ARE DIFFERENT - We aim to make the best products to live a more convenient and safer lifestyle. We have a professional product monitoring team that focuses on every detail.