Finish: *Material: Carbide Tipped *Number in Package: 1 *Packaging Type: Carded *Product Type: Glass/Tile Drill Bit *Shank Diameter: *Shank Type: Straight Shank *Sub Brand: *Brand Name: Irwin *Style: *Flute Length: *Overall Length: 4 *Drill Size: 5/16 Vendor Internet Sales Policy: Sale of this product on third-party online marketplaces (eg. Amazon, eBay, Walmart) or member-owned websites is prohibited without direct written authorization from Stanley Black & Decker.