6-1/2 Inch Block Plane features a hardened and tempered alloy steel cutter, ground to a razor-sharp edge for precision with wood planning projects. A single point adjustment device is great for making modifications with ease.Cast Iron Body is Accurately Machined and PolishedHardened and Tempered 1-9/16 In. Width CutterFront Handle for Extra ControlUses Blade #PL138 for Quick and Easy Replacements Cast iron bodyHardened and tempered 1-9/16 in. width cutterUses blade #PL138 for quick and easy replacements