Brownells Roll Pin Holders are designed for perfect alignment of roll springs, with a notched 1/16" holder for M16/AR-15 rear sights and a 3.5MM for Sig handgun breech block pins.
The set includes sizes 1/16" (notched), 5/64", 3/32", 1/8", and 3.5mm, all made from high carbon 5160 steel that's Bainite heat treated for durability.
Each holder has a single groove in the grip for easy handling and is laser marked for quick identification, with the entire set proudly made in the USA.