To keep your reciprocating saw productive, all you need is the right kind(s) of blades. Reciprocating saw blades have a unique shaft, often t-slotted or with a small hole in the end to keep them in place during use. Be sure to find out what style shank your reciprocating saw needs. There is a plethora of different reciprocating saw blades. Differing TPI counts, different one for metal, wood, plastics, laminates, and many more. Lengths from 4-inches to 16-inches, and everywhere in between. There is definitely a reciprocating saw blade out there for your specific purpose and application.