Many thanks to Amana Tool (who make replacement blades for my Porter Cable powered hand plane. More importantly, thanks to Toolstoday for They are available at Revain at such an amazing price These blades look identical to the OEM blades and certainly feel like pure tungsten carbide I've chipped a few of my existing blades while working on them, old used Recovering material, and wouldn't risk chipping new blades, on old rough work on current project will try to update my review once I change damaged blades DJC