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

Very economical tap. Works fine!

Worked exactly as it should, no issues here.

I hand tapped over 30 holes at 4mm depth for some grub screws and they all came out perfect. Lots of the negative comments are from misuse. Remember to use cutting oil and back out a little constantly. Most importantly, make sure you are pre-drilling the right size diameter hole before tapping. The correct size can be found online. For an M4 tap, you need a 3.3mm hole.

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

Benchcrafted sends machine-threaded screws to attach the Retro Crisscross and Glide hardware for their renowned leg vise, rather than wood lag bolts/screws. Surprisingly for me, they actually worked quite well. This Bottom Tap has thread cutters almost to the end of the tool, allowing you to drill a hole slightly longer than the effective depth of the screw, unlike the taps available at big-box home improvement stores which have a longer distance between the full-sized cutting thread and the end of the tap. Since Im using it on Southern Yellow Pine, theres no appreciable wear on the tap while using it, and it was the right tool for this job.

I received this product and it was of great quality and completed the job perfectly. I used it to tap aluminum piping. Unfortunately after completing the job, I realized I had purchased the wrong size. Overall though, it did a great job at what I ordered it to do. Thank you!

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

it literally broke on the first bolt hole I tied to clean the existing threads on.... I never have broke a tap in my life and did not put hardly any pressure on it, I do believe it was defective... I lost my money this time

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

Great for mounting sights on guns.