The Bordo Chrome Tap Set UNC-3/4X10 (4232-3/4Ts) is a precision toolset designed for threading and tapping operations in Unified National Coarse (UNC) thread pattern with a 3/4-inch diameter and 10 threads per inch.
3/4″” x 10 UNC Chrome Tap Set
Chrome Alloy UNC Hand Tap Set.
Used as thread chasers to clean an existing thread.
They can also be used to create a new female thread in non-ferrous metals and plastics.