Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - 1 x 8The Baer Heli Coil Tap is the dedicated tool for restoring and reinforcing threads with confidence. Engineered for durability and built to last, this Bottoming Tap (STI) in UNC 1 x 8 is purposemade to work with HeliCoil wire thread inserts, delivering clean, accurate threads every time your project demands it. Premium construction for repeated use. Crafted in highspeed steel (HSSG) to resist wear and maintain precise thread geometry through many