Fein starlock long-life e-cut saw blades have an outstanding service life and excellent work progress. The long-life e-cut saw blade is extremely robust and makes very clean cuts in drywall, plastics, and all wood materials. The long-life blades will cut nails (up to approx. 4 mm dia.). Featuring the Fein starlock mounting system, the long-life e-cut saw blades fit every popular multifunction tool on the market. Even If you don’t own a Fein oscillating Multi-Tool, you can affordably upgrade output by choosing a Fein starlock blade. Fein originated the oscillating tool and is proud to offer innovative and durable accessories that achieve ultimate performance. Blade width 2-9/16". one year warranty against defects in material or manufacture.