Slice® SPG10520 craft knife blades are made of 100 percent hand-sharpened zirconium oxide. They feature a curved edge for added maneuverability and a rounded tip to guard against puncture accidents. As with all Slice blades, our SPG10520 blades are non-magnetic, chemically inert, and never rust. The SPG10520 blades are designed for use specifically in the Slice® SPG10548 Craft Knife.
