WoodOwl 5/16" x 7” Combination Utility Ship Auger Bit Single Spur 060002 | eBay
1-1/4" by 6" Ship auger bit - Dewalt DW1674 - Elite Tools
Milwaukee 1-1/2 in. x 18 in. Ship Auger Bit 48-13-6500 - The Home Depot
PHITUODA 2Pcs Wood Auger Drill Bit 1/2 Inch x 10.6 Inch Ship Auger Bit, Tree Stump Drill Bit Timber Auger Bit, 3/8 Inch Hex Long Drill Bits for Wood, Plastic, Drywall - - Amazon.com
Irwin 1-3/4" x 18" Long Ship Auger Bit - White Cap