This 3 pack of Fein E-Cut Long-Life Saw Blades (63502160270) are constructed of bimetal with teeth set for all woods, plasterboard and plastic materials. The blades provide outstanding service life, very clean cuts and excellent work progress. They are extremely robust, unaffected by nails in wood (up to approx. 3/16" in diameter), masonry, etc. Their waisted shape is optimal for cutting speed and good swarf removal.