Manufactured using the same specifications as our standard 9/64" Brad And Spur point drill bit, our Premium Woodworking Drill Bit is titanium nitride (TiN) coated, adding considerably to the lifespan of the bit. TiN coating is harder than carbide and provides greater edge retention and corrosion resistance. The Brad And Spur tip tracks well in all types of materials and is recommended for use with a No.7 screw. This bit is ideal for hard woods, including the more dense species. When you are in need of premier woodworking tools and supplies, turn to Castle, Inc. We pride ourselves on providing our customers with the highest quality parts and carpentry supplies. Technical Specifications: 9/64” woodworking drill bit; TiN coating; Greater corrosion retention; Recommended use with No. 7 screw.