10-08-2015, 03:51 PM
I have a pretty good selection of spiral flute and spiral point taps that I've been amassing. After having some of the cheaper ones (Hertel squarely in that class, BTW) chipping teeth on me under power tapping, I now buy the best I can find for reasonable money on eBay.
This one came in last week, was $15 from Dan's Discount Tools on eBay, shipped. It's a Prototyp (brand) A22203-UNC3/8, a 3/8-16UNC 3B class tap. VAP (steam oxide) coated, HSS-E (HSS with 5% cobalt) and will last a lifetime. The Class 3 tap makes a Class 3 thread, but those are also Class 2 compliant. Not the other way around AFAIK. Check eBay for that seller, he's got GREAT deals and usually free shipping.
![[Image: IMG_20151008_163653091_zpsz6l80o3d.jpg]](http://img.photobucket.com/albums/v466/kenm10759/Dads%20shop/IMG_20151008_163653091_zpsz6l80o3d.jpg)
Made in Germany, just as good if not better than Made In USA! I doubt I'll ever need another 3/8-16UNC tap for through holes.
This one came in last week, was $15 from Dan's Discount Tools on eBay, shipped. It's a Prototyp (brand) A22203-UNC3/8, a 3/8-16UNC 3B class tap. VAP (steam oxide) coated, HSS-E (HSS with 5% cobalt) and will last a lifetime. The Class 3 tap makes a Class 3 thread, but those are also Class 2 compliant. Not the other way around AFAIK. Check eBay for that seller, he's got GREAT deals and usually free shipping.
Made in Germany, just as good if not better than Made In USA! I doubt I'll ever need another 3/8-16UNC tap for through holes.