Diablo 4-1/2 in 36 tooth cordless trim saw blade includes a 3/8 in arbor. Diablo finish blades are the ideal choice for excellent rips and crosscuts using a portable saw while the super thin kerf helps extend the battery life on the saw.TiCo hi-density carbide specifically designed for each application to provide maximum performance and cutting lifeSuper thin laser-cut kerf gives extremely fast, durable and clean cutsLaser-cut stabilizer vents trap noise and vibration keeping the blade cool and reducing blade warpNon-stick Perma-SHIELD coating reduces gumming, rusting and corrosionIdeal for smooth finish crosscuts in hardwood, softwood or plywood