This Silky Katanaboy saw blade is used when the saw blade of your Silky Bigboy is broken or blunt. Or if you want to use a blade with different serrations this saw blade will come in handy. The teeth on this saw blade are sharpened and therefore razor-sharp. Because resin cannot adhere to the blade because of the chrome layer you prevent rust. With four teeth per 3 cm you can definitely call the serrations extra coarse. Tree trunks and large branches don't stand a chance against this folding saw.