[Professional frame saw blades] The precision grinding process makes the frame saw blade very sharp. It can easily cut and separate building materials such as brick, plasterboard, aerated concrete, pumice, ytong, poroton and other building material derivatives with a thickness of less than 41cm, greatly improving work efficiency., , [High hardness saw blade:] The body of the Saw is made of carbon steel and the teeth of the saw are made of high quality alloys. Thanks to the generous thickness of the saw blade and the extra large tooth pitch. Brick reciprocating saw blades also have a long service life and cut quickly, roughly and straight., , [General gang saw blades]: gang saws and general gang saws 2TPI, including the common cordless gang saws and tiger saws; such as Bosch, Metabo, Makita, Einhell, Flex, Festool, Milwaukee, Black & Decker, Skil, Hilti., , [Wide application] Suitable for cutting: aerated concrete, red brick, fiber cement (