Edges produced by various hones
This is a quick study Tim Zowada put together while learning how to hone razors on a semi-production basis. This is not meant to be a definitive study of the honing qualities of various stones. Rather, it is just meant to give a basic idea of what's going on. Please also see Bevels produced by various hones.
Background[edit | edit source]
- The stone surfaces, and the razor edges are all at 200x magnification.
- The razor is O1/L6 Damascus at 62.5 HRC.
- The initial edge is honed at a 15 degree included angle.
- The initial edge was a horizontal, along the edge, scratch pattern developed with a Norton 8000 grit hone.
- Ten, 5" long" strokes were used on each side of the blade.
- Only the weight of the blade was used for pressure.
- No stropping was done after honing.
- All stones, except Spyderco, were used wet.
- No slurry was used on any stone.
- All stones were freshly lapped at 2000 grit.
The lapped edges had a Chinese 12000 grit finish for the final honing step.
Here, the edge is viewed at a 52 degree angle. This gives a better idea of how the actual cutting edge looks.
Procedure[edit | edit source]
- Hone blade at 15 degrees with Norton 8000. Hone marks should be at least 0 - 40 degrees relative to edge.
- Add one layer of 0.006" electrical tape to blade back. This kicks the angle up to 15.75 degrees and gives the test stone a fresh edge to work on.
- Use ten strokes, 5" long, alternating blade sides.
- Clean edge with acetone.
- Photograph under microscope. The blade was held in place with clay and pushed agianst a 60 degree reference.