1/2"-20 UNF Right Hand Tap TiN Titanium Nitride Coated.
3/4"-16 UNF Right Hand Tap Tungsten Titanium Coated
TGR 5/8"-18 UNF Right Hand Fine Thread Tap Tungsten Titanium Coated
TGR 1/2"-20 UNF Left Hand Fine Thread Tap Tungsten Titanium Coated
TGR 3/4"-16 UNF Left Hand Fine Thread Tap Tungsten Titanium Coated
UNF LEFT HAND THREAD REPAIR KIT 1/4-28 5/16-24 3/8-24 1/2-20 HELICOIL L/H SAE LH
UNF LEFT HAND THREAD REPAIR INSERTS 1/4-28 5/16-24 3/8-24 1/2-20 HELICOIL SAE LH