Lazer Series Blades Are Designed To Cut Pipe, Structural Steel, And Stainless Steel. Ideal For Plumbers, Electricians, Welders, And Construction. 40% Wider For Even Greater Strength, Durability, And Straight Cutting. Tooth Design Increases Blade Life And Cutting Speed. .043" Blade Thickness. 5 Blades Per Pack. These Are Complete Line Of Heavy-Duty Shop Products That Will Bring You Years Of Reliable Performance.