Removing the serrations from the trigger face on a Smith and Wesson revolver can improve the feel and trigger pull when shooting the gun in double action. Larry Potterfield, CEO and Founder of MidwayUSA, walks through this process using only a rotary tool. Starting with a coarse grinding wheel, the bulk of the serrations are removed. This is followed by polishing with a sanding drum and consecutively finer polishing bits. Once the surface has been polished, finish the metal with a little cold blue.