Xcalibur Tooling Jointer Knives are supplied in plastic sleeves for protection in transit. Being one of the largest suppliers of jointer/ planer knives, we have a wide range of jointer thicknesser knives to fit most of the make and models of JOINTERS (Surfacers) Planers & planer thicknessers around the world. Xcalibur Tooling's highly automated manufacturing process assures controlled precision knives. Our premium grade HSS T1 steel with high levels of Tungsten steel offers 25% longer run times than standard HSS grade. HSS T1 is hardened to 63 Rc for better wear resistance in harder woods. Our jointer knives are high end precision made to ISO specifications.