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

Used for threading bored out delrin rods. Worked great. Excellent results.

Works great. Used it at work to tap out some screw holes.

I expected to get a pack of three bottoming taps like the photo indicates. I had searched for bottoming taps and when I saw a photo with three bottoming taps I ordered it. Needless to say I was surprised to discover that only one of the taps is a bottoming tap. The others are a tapered tap and a plug tap. I went back to the original sales description and scanned through all the photos. In every photo where three taps are displayed side by side all the taps are flat nosed indicating that they are bottoming taps, however, in one of the photos the set is described as consisting of one bottoming tap, one tapered tap and one plug tap. Note to seller: when you display a set of items that are different from each other then display the items contained in the set and not a photo of one item repeated three times.

I am frustrated at the photo not accurately representing the product. The product photo shows the threads wider than the body so you can tap both sides of a tube with a single tap. What was delivered did not look like the photo. I wouldn’t have ordered them.

Individually contained in plastic containers so you can isolate them and be able know what they are and what they are I marked them as you can see in the photo.

This three tap set could be very useful however the set was supposed to include a taper, plug, and bottoming tap. The set I received included two taper and one plug tap. No bottoming tap was included.

Was just tapping aluminum, but did a great job. Had some mounting bolt threads that stripped on a Kohler engine. I drilled them deeper, and tapped with this set. The bottoming tap gave me a few more threads to screw in to.

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 used grade 8 bolts into schedule 40 pipe after drilling and tapping. The tap started and cleaned easy.

Performed as expected.