1-inch by 18-inch auger drill bit with 3/8-inch shank diameter
Precision design creates less wobble in the drill and bit
Self-feeding tip and wide throat leave cleaner holes
Ideal for wood, plastic and metal,Comes with a 30-day limited warranty
3/8" dimension for the shank measures from flat side to opposite flat side (not from the corners).
1" x 18" Auger Bit
High speed steel
Wood or Plastic