Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - 7/8 x 9The Baer Heli Coil Tap is the bottoming tap you reach for when you need impeccable thread repairs and reinforcements. Engineered to pair seamlessly with Heli Coil wire thread inserts, this UNC 7 8 x 9 bottoming tap delivers precise, clean threads that restore strength where it matters most. Crafted for durability, the tap is machined to rugged reliability with high speed steel (HSS G) construction. Its bottoming geometry reaches the full thread depth