Patent ID: 8910386

Claim:
A hand operated cutting tool comprising: a first handle having a near and far end; a hook at the far end of the first handle, the hook having a tip and a base with a first cutting edge formed along a first concave arc having a fixed continuous radius of curvature extending from the base, and a second cutting edge formed along a second concave arc overlapping the first concave arc and having a larger fixed continuous radius of curvature extending from the tip, the two cutting edges intersecting at a predefined rise point located between the tip and base; a second handle having a near and far end, the second handle pivotally connected to the first handle for movement with respect to the first handle; and a cutting blade at the far end of the second handle, the cutting blade having a tip and a base with a first cutting edge formed along a first convex arc having a fixed continuous radius of curvature substantially matching the fixed continuous radius of curvature of the first concave arc on the hook, and a second cutting edge formed along a second convex arc overlapping the first convex arc, having a fixed continuous radius of curvature larger than the fixed continuous radius of curvature of the first convex arc and substantially matching the fixed continuous radius of curvature of the second concave arc on the hook, the two cutting edges intersecting at a predetermined point located between the tip and base and aligned with the predefined rise point on the hook.