Everything About Metal Jigsaw Blades
Jigsaw blades are all made of metal which are used to cut through metal, wood and other materials. The ability for a metal jigsaw blade to cut through each material, depends on its TPI (Teeth Per Inch). For example, the more TPI a metal jigsaw blade has, the better it is for cutting through metal.
Based on the metal they are made of jigsaw blades fall under 4 different categories:
- High carbon steel (HCS)
- High-speed steel (HSS)
- Bi-metal (BMI)
- Tungsten carbide
High-carbon steel blades are the most flexible of their kind and are suitable for general wood cutting. An ideal choice for hardwoods and metal workpieces, high-Speed Steel models are harder and more durable. Bi metals enjoy the flexibility of HCS models and the resistance of HSS, thus are used for heavy-duty cutting projects. Last but not least, tungsten carbide models are the most resistant ones to heat and are usually used on fiberglass and steel.
Teeth per inch (TPI) is another important factor about jigsaw blades. The fewer the teeth are, the faster the cutting process would be, and vice versa. As far as this feature is concerned, users who aim to create a smoother finish should go for models with more teeth.