Klein Tools Reciprocating Saw Blades come in a variety of blade lengths and thicknesses for different cutting applications. Shock resistant teeth help resist stripping. The universal 1/2-Inch shank fits most popular reciprocating saw tools. Reciprocating Saw Blades, 24 TPI, 6-Inch, 5-Pack 6-Inches long, 3/4-Inch wide, 0.035-Inch thick, 24 teeth per inch 1/2-Inch (12.7 mm) universal shank to fit all popular reciprocating saw tools