Bosch 4 in. x 10 TPI plastic-cutting jig saw blades are designed for PVC based materials. The Unique tooth geometry provides fast, clean cuts in PVC, with no melting. Bosch is the world-wide market leader for jig saw blades. This means uncompromising quality, innovative ideas and universal use. Whether for miter, straight or curved cuts, Bosch sells the right saw blade designed for high performance in all major brand jig saws.