Imperial Blades IBW12 Insulation/Rubber Knife Reciprocating Saw Blade, 12-Inch Made in Germany 100% satisfaction guarantee Sharp knife blade for insulation and foam The knife blade cuts smooth Comparable with Lenox, Milwaukee, Dewalt, Irwin, Bosch Made in Germany Unique Design for Faster and More Efficient Cutting Sharp Knife Blade for Insulation and Foam The Knife Blade Cuts Smooth