Made from High-Speed Steel (HSS) this blade has great durability and is able to make fast cuts. It is suitable for harder materials such as metal, copper, aluminium and other non-ferrous metals. The blade attachment is a bayonet or T-shank and has been designed for quick and easy blade changes. The shank shape ensures a secure fit, reducing the risk of slipping or coming loose during operation. Milled teeth helps the blade cut faster and leaves a rougher cut surface. The ground teeth have sharper edges which leave a smooth & accurate cutline.