Stanley FatMax Concrete Chisel forged from chrome vanadium steel for increased strength and durability. The blade holds its edge longer and therefore needs less sharpening. Less grinding equals longer life. Hardened, quenched and tempered to precise specifications for added safety. With a modified parabolic striking end for greater resistance to mushrooming and chipping. Fitted with a bi-material handguard for increased comfort and protection from overstrike. Size 300 x 19mm (12 x 3/4in).