Longer flute design to easily penetrate stacked wood and other thicker wood materials Ship Auger Bits Ship Auger bits make fast, clean holes in soft and hard wood. Each auger bit has a lead screw that pulls the bit into the workpiece, eliminating extra pressure and strain The Crescent Ship Auger features an optimized tip and flute designed to rapidly engage and penetrate materials. 3/4 x 18 Ship Auger Bit, DMS73-1040 - World Tool & Supply Crescent Ship Auger Drill Bit 18 X 7/8 Cdsh-1841 10 CDSH-1841 Crescent 7/8'' X 18'' Ship Auger Drill Bit 18 Inch Long Auger Bit Enhanced deeper flute design for ease of chip removal and less binding 7/8" x 18" Ship Auger Bit. Find this item and other cutting tools on Optimal flute design rapidly engages and penetrates materials Its deeper, hollow flute design and dual cutting edges uses a single cutting action for precise, clean holes with less binding.