Drill America 3/8-16 UNC High Speed Steel Tap Set

Machining brass these work great. These taps do not list the H value for pitch size, example H1 is .0005 inch over nominal pitch diameter each value add .0005 inch. Most taps are made at a H2 or H3 value. These seem to be H3 work very nice and you cant beat the price. These are 4 flute, hand taps, tapping block is recommended, get any tap sideways and good bye tap. The shank diameter is above the minor diameter so thru tapping past the end of thread is not possible, you would need a special taps for that, this is not it. Nice tap set great for hobby work, professionals dont guess at pitch sizes.

I had purchased these taps to clean out Frame Rail Weld Nuts in a 16 year old car. A lot of rust and road grime. The purpose was the installation of a new trailer hitch. When they first arrived I was impressed with the nice divided case that they came in. Very convenient especially considering the low cost of the set. That is where the good for this project ends. The first two snapped within minutes of use in the first nut. This was very surprising as I was using a T-Handle Tap Wrench and you cant get much torque with one. Im guessing these either had a bad temper or were from a bad batch of steel because the third lasted for the rest of the project (6 additional Weld Nuts). Next time Ill spend the extra money and get something a little higher quality.

Always a great product. Never had any issues. Keep em lubed.

There 1/4 20 but there a cheap tap so be carful not to make a bad job even worse with them.

Nicely made taps, but not a set of 1 each of taper, plug, and bottoming taps as described. Replacement set the same so did not bother to return replacement set.

These tap are marked HSS and seem to be well made. Im threading in Bakelite so they should last awhile.

havent used them much but they work as expected and have not broken yet.

Product came fast and they were packaged well. Nice set of taps. Perfect for what I needed.

Did the job.

I needed a reverse tap to adapt a weed cutter to work with fixed blade modification that replaces the string assembly. The kit used a 3/8 reverse bolt to attached the blades. Once I received the tap, I was able to cut threads required by the bolt. Worked out well. Have used the weed cutter several times and the bolt has not come loose.