Dormer 7174122 | UNF 1/2"-20 Thread Size x 9.00mm Shank x 21.00mm Length x 100.00mm OAL 2BX 5 Flute TiN Coated HSS-E E286 Thread Forming Tap

Thread forming tap with lube grooves with chamfer form C with a 2-3xP semi-bottoming lead, for Unified National Fine thread UNF 1/2" with 20 TPI and 2BX class of fit, dimensions according to DIN 2184-1 standard with 9.0mm shank and 7.0mm square drive, cobalt based HSS-E with TiN coating for 3.5xD through or blind hole threading in steel and cast steel, stainless steel and wrought or cast aluminium.