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

This 6-40 tap cleans the Ruger front sight hole on the Mark III & IV 22/45 Lite.

Cut threads very well into extruded aluminum

I used this to clean up the threads on a Model A Ford Zenith carburetor jets.

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.

Good price. Works well.

This tap worked for me. Had to redo a cross threaded bolt hole on my Harley. Just took it slow with plenty of oil, and after a few turns I was able to restore the threads. Just take your time.

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

Used this tap to remove some metal that had ponded in the threads of a nut that I had welded to something. The tap removed the metal cleanly and accurately, no discernable difference in fit between the repaired nut and a new one. For the average Joe this will likely work fine. Just remember to use a cutting oil to prolong the life of the cutting edges!

Good quality and cuts through aluminum like butter.

I bought these having to do a project. Tap works great!