The Brownells Mainspring Housing Hone polishing system for the 1911 is a sophisticated tool designed to polish the interior surfaces of government or commander mainspring housings. This process delivers a smooth, burr-free finish, which is crucial for achieving a professional-grade trigger job. It guarantees consistent mainspring compression and dependable trigger performance.

• The medium grit hone effectively eliminates surface irregularities and machining marks, whereas the fine grit hone delivers a refined, polished finish for enhanced surface smoothness
• 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