The Brownells Mainspring Housing Hone polishing system for the 1911 is an advanced tool engineered to polish the interior surfaces of government or commander mainspring housings. This process results in a smooth, burr-free finish, which is essential for attaining a professional-grade trigger job. It ensures consistent mainspring compression and reliable trigger performance.

• The fine grit hone effectively eliminates surface irregularities and machining imperfections, while the ultra-fine grit hone delivers a refined, polished finish
• Each hone has an overall length of 8 inches, facilitating easy access and maneuverability within the mainspring housing
• To achieve optimal results and extend the lifespan of the hones, it is advisable to use them with Flex-Hone oil