"This Tap and Die Set is the end result of many previous disappointments with innexpensive taps and dies. Inferior taps and dies simply aren't worth the money if you have anything more serious in mind than restoring damaged threads.
This set is absolutely superior in three ways that are not apparent by the descriptive wording in the Northern Catalog.
1: The choice of materials and heat treating hardness is just right. Harder, and the taps would be too easily broken. Softer, and the taps and dies wouldn't stay sharp enough to thread difficult materials.
2: The range of sizes is enough to handle almost any ordinary threading requirement and many not so common ones. Most sets only go up to half inch size or thirteen millimeter. These go up to three quarter inch and nineteen millimeter. I've occasionally needed larger sizes, but I prefer to buy them individually, as needed, because they are rarely used. Most sets only include the standard national fine and national coarse, but this set includes the extremely hard to find super fine threads often used on machinery.
3: All sizes of taps are present in both styles. There are two of each size tap. One standard tap for through hole tapping and one bottoming tap for blind hole tapping. In previous sets, I've not found the bottoming taps. I'd have to grind the lead off of a standard tap in order to create a bottoming tap. Then I'd be left with a difficult to start and difficult to turn tap anytime I'd need that size in the future.
I simply couldn't be more pleased with this Tap and Die Set."
What is your level of technical expertise? Professional
