From store buy out, new in box never used, still in plastic bag.
Quick Change Gears, Ultra Duty, 10-Spline, E 9310 Steel, Set 1, 27/27 Teeth, Set
These Quarter Master Ultra Duty quick-change gears have been specifically designed to run smoother and last longer than any other gears on the market. They start with the highest quality E9310 aircraft steel. The gears are precision-hobbed to AGMA Class B tolerances to produce a true involute tooth form for a high contact ratio. After a proprietary heat-treatment process, they are hand roll tested and inspected for defects.