Reply by ondablade

Imagine that the blade stays square because it’s placed on the sloped surface that’s square to the disc. Or uses the optional honing guide and support plate which also hold it square.

When the blade is held square the slowest honing part of the blade will determine the rate at which material is removed from the whole lot. In practice it probably equalises by removing the material more quickly from the the ‘fast’ side so that once that’s gone the ‘slow’ side ends up supporting the blade – it’ll strike a balance where it carries enough extra of the load on the slow side to compensate for the extra speed on the other.

It’d be different if you were honing the tool by holding it in your hand to apply equal pressure across the whole width – the absence of a honing guide to hold it square means there will be no reduction in pressure on the side that is losing material more quickly…

ian

-- Late awakener....