If you shoot the G5 Montec broadhead, you need the Flat Diamond Sharpener from G5. The dual sided diamond surfaces quickly return your Montecs to a razor sharp edge, and the diamond steel lasts season after season. This stone is the fastest and easiest way to keep your broadheads razor sharp and ready to use. FeaturesEasy to UsePremium Grade Diamond SteelIncludes both fine (1200) and rough (600) diamond sidesDesigned Specifically to Resharpen the Montec BroadheadNylon Case Included