Brownells HSS Semi-Auto Pistol Sight Base Cutter is a milling cutter made to cut dovetail sight bases using a 65-degree shoulder profile on standard Colt factory and mil-spec 1911-pattern rear sight bases, as well as many replacement sight bases that use a 65-degree shoulder.
Key Features
Cuts 65-degree dovetail sight base shoulders for common 1911-pattern and Colt-style rear sight bases
High Speed Steel (HSS) construction for reliable cutting performance
Cutting diameter is .330 in, designed for repeat passes to accommodate base-width and milling tolerances
Milling-machine use only, with a maximum 700 rpm to help prevent broken teeth
Designed for precise sight-base machining, this cutter helps you fit compatible replacement sights with the correct dovetail shoulder angle.
