Bordo UNC Chrome Tap Set Size:5/16" x 18TPI rub across the grain in

rub across the grain in a circular motion finishing with the grain

This coupling is best described as a male cone within a female cone

Flex handle

4 x Small Straight Pegs

Bordo UNC Chrome Tap Set Size:5/16" x 18TPI rub across the grain inAbout this product: 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. Chrome alloy taps are not suitable for creating precision, safety or critical threads. Unified National Coarse thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK. The thread profile of UNC is the same as for