Drill America - DWT54506 5/16-18 UNC High Speed Steel Bottoming Tap, (Pack of 1)

Worked exactly as it should, no issues here.

The tap was as described and worked great. Shipping was 7 days.

This 5/8-28 tap matches the thread in the tail of a 2AA Mini Maglite. I had a battery leak, and the resulting corrosion made it very difficult to unscrew the tail cap (I had to clamp it in a chuck). I eventually got it apart, extracted the batteries, and scraped out the residue, but the threads were badly galled. I used a needle file to clean up the external threads on the tail cap, but had to buy this tap to re-cut the internal threads. Note that some internet sources say the Mini Maglite has a 27-pitch instead of a 28-pitch thread. While a 27-pitch thread would probably work just fine (since the threaded part of the cap is only about four threads long), I inspected the Maglite threads under a microscope with a thread gauge and I am certain it is actually 28 TPI. I had no problem re-cutting the internal threads with this tap, and the tail cap now screws right in. Of course, for the price of this tap I could have just bought a new flashlight. But I generally err on the side of buying new tools, and these flashlights are very common (there are at least three in my household) so Im sure this wont be my only opportunity to use it.

Seems to be well made and is of great quality, performs great for what I needed.

Good quality and cuts through aluminum like butter.

worked for me

Bought this tap to thread holes in a cast iron transmission pan on an old tractor. It cut the iron no problem. Did 8 holes and was still cutting the threads well. Very happy. I used a size F drill bit and then tapped the holes with this. Nice tool.

I got two taps and a die from Drill America on this order. The taps are good/excellent but the hex die was a weird comically tiny nonstandard size (an M8x1.0 with a bizarre tiny 11/16 hex width almost like youd expect with the micro and jewelers tiny round dies or something). The M8 tap I received had to be returned but overall it was decently ground and good quality with some niggles in form/design compared to typical US made or US branded taps. This little 4-48 tap is great, though, darn close to US hss taps I normally use. The teeth are expertly ground and clean, angles seem right, both ends are finished cleanly. Ive only put one hole 1/4 deep into some mild steel but the action felt great and the threads were beautiful. Ill be angry-sad when this tap eventually snaps, as all the tiny ones eventually do, but initial impressions are excellent.

Thought a new 6-32 tap would be the right way to start a new project... It snapped on the second hole. Had to revert back to the one I had which got me through the next 22 holes.

The tap worked well its too bad I only needed it once