Crafted from hardened alloy steel for long life, DEWALT Long Power Ship Auger Bits feature a dual-cutting edge for maximum durability in nails. A self-feed spur delivers expedited material penetration, and hollow center flute provides aggressive chip extraction. Heat treated and tempered for long life.Features 7/16" Ball groove shank allows for quick bit changes Hardened alloy steel provides superior bit life Dual cutting edge for maximum durability in nails Self feed spur for fast material penetration Prop 65YesIncludes1 power ship auger bit Bit Size: 1-3/8 in Length: 18.250 in Material: Alloy Steel Self Feeding: Yes Bit Type: Auger Flute Length: 12 In Depth: 12.0 In Weight: 2.800 lbs Width: 1.750 in Height: 1.750 in Shank Length: 5 In Shank Type: Hexagon Shank Diameter: 7/16 in Chuck Size: 1/4 in Cutting Edge: Dual Country of Origin: Brazil