These jags are wrap style jags with a blunt nose. Jags grip patches tightly. Great for use with J-B or when applying solvent such as Sweet's. Parker Hale style jags are available with male or female threads. Male or Female threads match standard threads for the bore diameter selected. Female style mate with Dewey coated rods. Male style mate with Dewey stainless and other brands with standard cleaning rod threads.
Sinclair, Issue:5B, Page:132