Large version of No. 10 blade with a curved, cutting edge and a flat, unsharpened back edge.
- Large version of No. 10 blade.
- Curved cutting edge.
- Flat, unsharpened back edge.
- Larger than the No. 20.
- Smaller than the No. 22.
- Fits handles 4, 4L, 4 graduated, and 6B.