Jigsaw blades are utilized in woodworking and metalworking to carve intricate shapes and curves. These blades are fixed onto a reciprocating saw, commonly known as a jigsaw, which rapidly moves the blade up and down to make cuts through the material. There are various types of jigsaw blades available, made from different materials with diverse tooth configurations that cater to specific cutting requirements. The Ronix RH-5604 is the best 12TPI jigsaw blade you can find. It is made from high-speed steel, with a T-shank design.