Brand Name: Irwin *Sub Brand: Speedbor *Material: Carbon Steel *Shank Type: Hex *Drill Bit Diameter: 1-1/2 in. *Dril Bit Length: 6 in. *Product Type: Wood Boring Bit *Number of Pieces: 1 pc. *Chuck Size: 1 1/2 in. *Shank Diameter: 3/8 in. *Packaging Type: Carded *Flute Length: 2-7/8 in.