Brand Name: Irwin *Sub Brand: Speedbor *Material: Carbon Steel *Shank Type: Hex *Drill Bit Diameter: 9/16 in. *Dril BitLength: 6 in. *Product Type: Wood Boring Bit *Number of Pieces: 1 pc. *Shank Diameter: 1/4 in. *Chuck Size: 1/4 in. *Packaging Type: Carded