Pratt & Whitney Snap Thread Gage 1/4-20 UNC Vintage

Full disclosure – I have no idea what these are, nor do I really know how to describe them. I’ve taken a bunch of photos so you can be your own judge, and I’m open to offers for all that I have listed of them.

PWZ 1/4-20 UNC SPIRAL FLUTE TAPS A22503 Made in Germany 2 Pcs

2 pcs The PWZ 1/4-20 UNC SPIRAL FLUTE TAPS A22503 are high-quality machining tools made in Germany. This lot of 3 taps features a spiral flute design for enhanced chip removal and improved performance. The PWZ brand ensures reliability and precision in your machining projects. Made in Germany, these taps offer excellent craftsmanship and durability for professional use. PB2102