Check the listing for details. STI COARSE THREAD TAP GUIDE FOR HELI-COIL® TYPE INSERTS - REPAIR THREADS EASIER. Condition: New. Listed at 30.75 USD. STI-UNC V-TAPGUIDE(United Coarse Thread)New - Standard size - Patented Tap Guide by: Big Gator ToolsEngineered to be the Most Universal Tap Guides Ever! 100% Made in the U.S.A. This standard coarse thread STI tap guide is sized for ground tap sizes: (9/16-12, 1/2-13, 7/16-14, 3/8-16, 5/16-18, 1/4-20, 12-24,10-24, 8-32, 6-32) · Automatically squares up the tap with the surface.· V-groove along the bottom of the guide allows for perpendicular alignment with all tap sizes on round parts or corners. · Natural steel finish, non-plated. · Portable, pocket-sized. · Made from special nickel alloyed steel that is heat treated for durability. · 100% Made in the USA. · Eliminates most tap breakage due to improper alignment! · Insure perpendicular Heli-Coil® insert alignment. Lifetime Warranty To check out all the Guides that Big Gator Tool has to offer!! Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eBay Marketing, eBay listing Apps, eBay Apps, eBay Application Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eBay Marketing, eBay listing Apps, eBay Apps, eBay Application