Material: High Carbon Steel *Metric or SAE: *Number in Package: 2 *Packaging Type: Carded *Product Type: HCS Tap and HSS Drill Bit Set *Sub Brand: Hanson *Usage: *Brand Name: Irwin *Drill Bit Included: *Fastener Diameter: *Length: *Number of Flutes: *Recommended Drill Bit Size: Letter G *Style: *Tap Size: 5/16 *Thread Pitch: 18 *Thread Type: NC *Die Size: Finish: Black Oxide *Point Type: Plug Tap *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.