arcticap
Member
This may be old news to some but RMC has invented square drive revolver nipples along with a square drive nipple wrench that will fit many popular Pietta and Uberti revolver models.
It's certainly an interesting innovation by an American manufacturer that some folks might find useful.
https://rmcoxyoke.com/product/square-drive-nipples-with-square-drive-wrench/
"New Square Drive revolver nipples for Uberti and Pietta blackpowder revolvers.
Provide a secure fit with the Square Nipple Wrench, helps to prevent stripping of the nipples when removing.
Includes six nipples and one wrench. Wrench and nipples also sold separately.
Available with M6 x .75mm threads for Pietta revolvers, models: Paterson, 1851 Navy, 1860 Army, 1861 Navy, 1858 Remington, Dance Navy, Spiller & Burr, and Starr.
Available with 12 x 28 UNF threads for Uberti revolvers, models: 1851 Navy, Baby Dragoon, 1849 Pocket, Wells Fargo, 1860 Army, 1861 Navy, 1862 Pocket Police & Navy, 1858 Remington, 1858 Remington Carbine, and 1873 Black Powder Cattleman."