Steel Demon saw blades are specially designed for the extreme demands of ferrous metal cutting; thereby enabling precise cuts without sparks, heat or burred edges that result from using abrasive blades. With up to 40X the life of standard abrasive disc, Steel demon delivers unparalleled performance and superior quality cuts. Blades feature Freud's TiCo Hi-Density Carbide, Laser cut bodies, Anti-vibration technology, Perma-Shield Non-Stick Coating, Triple Chip Design, and pretensioned blades. Diablo's blade is designed to fit 7-1/4-Inch Circular Saws. 7-1/4-Inch diameter x38t, 5/8-Inch arbor, 56+ RPM, 1/8 to 3/8-Inch max cut thickness, mild steel.