Diablo D0740A 7-1/4'' D 40-Teeth 5/8''-Arbor Circular Saw Blade (10-PACK) This product was wholly produced or has undergone its last substantial transformation in Italy. Laser cut stabilizer vents trap noise and vibration keeping it cool and reducing blade warp Laser cut heat expansion slots allow blade to expand due to heat build-up keeping the cut true and straight Durable micro grain titanium carbide for extreme durability, razor-sharp cuts, and long life Tri-metal shock resistant brazing allows carbide tips to withstand extreme impact for maximum durability Laser cut arbor for accurate blade rotation reducing vibration and premature wear 5/8 in knockout arbor Thin kerf, ideal for portable and low powered saws Perma-shield permanent coating prevents gumming and corrosion Micro Grain carbide tips are thick enough for several resharpenings, yet these blades are affordable enough to be disposable Thin kerf, .059, saw blade for use on handheld circular saws. Durable 'MicroGrain Titanium Carbide' for razor sharp cuts and long life. Laser cut stabilizer vents for reduced vibration and precise cuts. Blades leave a smooth finish.