Stanley 12-331 Block Plane Cutter Hardened, tempered high-carbon chrome steel assures excellent edge retention Can be honed to a razor-sharp edge Ground to a flat surface for easy sharpening Comes with accurate ground edge of 25; finishing with an additional honed angle of 30 is recommended Limited Lifetime Warranty Hardened, tempered high-carbon chrome steel assures excellent edge retention Can be honed to a razor-sharp edge Ground to a flat surface for easy sharpening Comes with accurate ground edge of 25; finishing with an additional honed angle of 30 is recommended Limited Lifetime Warranty