Reversible Safety Wire Twister Pliers
Made in the USA (Believe these are Westward or Proto can't tell). Only difference from the video is that these are not spring loaded like the video. You manually need to twist the puller back in and pull again.
These are not Pittsburgh (Pittsburgh tools are made in Taiwan/China).
Wire-twisting pliers lock their jaws onto the loose ends of wire and spin the wire to twist it together. Also known as wire twister pliers, they make tight, consistent twists that resist unraveling. They are commonly used to form decorative twists for jewelry and safety wire twists that lock down fasteners in aircraft and high-vibration machinery.
See video of how they work:
https://www.google.com/search?sca_esv=c249fe050a18e619&rlz=1C1RXMK_enUS1028US1028&sxsrf=AE3TifN477vv5x075b5Q5RVYYVEi0CZ7Nw:1765676011895&udm=7&fbs=AIIjpHxU7SXXniUZfeShr2fp4giZjSkgYzz5-5RrRWAIniWd7oS2acQmjlbnmSjnfgHYYvTUBHcHTgOHUT-4czafcOf4lSRANYA23guBi9BsPpgnIH4NB1wGSs9NzWE2bH0rGWTh6OoRzYe3HiFEYpmMkoB7ygB4mrKKJKnggEpo6cG6Bw8rGuLGiVH9uDFtvMHscMeqYKwkfk9RB0uvOR_RC4T3ggEeJw&q=reversible+safety+wire+twister+pliers&sa=X&sqi=2&ved=2ahUKEwiRzejb97uRAxUTDkQIHX9MDbAQtKgLegQIExAB&biw=1745&bih=835&dpr=1.1#fpstate=ive&vld=cid:41e15cb6,vid:53gvB659MGs,st:0