Rated 4.4 out of 5 stars.
Working on left-hand threads?

This HSS die is exactly what you need for cutting or repairing 5/16-24 UNF left-hand threads.

Made from high-speed steel, it's durable and will stay sharp through plenty of use.

The die has an outside diameter of 25mm and a thickness of 9mm, so it fits standard die holders.
Left-hand threads are less common but super important in certain applications—like some bicycle pedals, certain machinery, or anywhere reverse rotation is a risk.

This die is sold as a single piece, so make sure you have the right threading tools to use it.

Whether you're a machinist, mechanic, or serious DIYer, having a left-hand die in your toolkit can save the day when you encounter those tricky reverse threads.
Just remember: righty loosey, lefty tighty with this one!
