6 x 34 050 x 6 Tooth S636rp Reciprocating Blade, Used For All Metals Less Than 18 Thick Tubing, Conduit, Trim, BiMetal Construction, Matrix II Type Alloy High Speed Steel Cutting Edge, Precision Milled Teeth, Angled Tang Shatter Resistant, Shock Resistant, High Wear Resistant, High Heat Resistant, More Aggressive Cut, Cuts Through Tough Materials, Longer Life, Retains Tooth Sharpness Longer, Increases Productivity, Faster Cutting