Blade Size: 3-1/2"Starlock Interface For Professional Performance , Also Works With OIS Compatible Tools Including Bosch, Fein, Milwaukee, Makita, Rigid And MoreBi-Metal Cutting Edge For All Purpose Applications Including Wood With NailsSegmented Cutting Edge, Perfect For Straight Or Flush CutsTitanium Coated For Durability And Better Quality CutsColor Coded Interface And Laser Etched Blade To Quickly Identify The Right Blade