ATOPLEE 7pcs Metric HSS 6542 Left Hand Thread Tap Set, M3 M4 M5 M6 M8 M10 M12

I used one tap to turn a 10 mm bolt head into a 10 mm left hand nut. Some of these cheap tops are not hard enough cut virgin threads but these ones did the job just fine mine is not a production environment so I can't tell you how many threads you'll be able to cut before they go dull. If they do they're fairly simple to sharpen.

Nice assortment of metric left handed taps. Of course you can always use your right hand, 😂 but these are for left handed threads. I work on equipment, and lots of times, they tighten by turning counterclockwise, so this is when these really come in handy, for cleaning up damaged threads. I hope you didn’t mind the little humor, but we all need a bit from time to time. Oh speaking of a bit. They also make left handed drill bits. 🤷‍♂️

Had to tap mirror holes on my Victory Judge to put plugs in. Reverse thread just to make it more fun to find tool to work. Tap worked great with Gearwrench set.

Tap are not mark for sizes

It's hard to find a source for left hand metric taps. I'm glad I found these. I've used them on brass and steel. So far they cut very well. I cut brass dry and steel with sulfated pipe cutting oil

Came on time and work great

need to tap a bushing with left handed threads, i intended to use on an electric motor... to eliminate the gap on a factory threaded axel. the ta; snapped off while trying to tap the bushing.... should not have been a difficult job for the tap.

They worked for what I needed them for. Cleaned out the threads on my miter saw.