Hello all,


I have a Naniwa set (2k, 5k, 8k, 12k), a Chinese 12k, and a Swaty 2-line barber hone.

I want to buy a lapping stone.
I have the choice between:
- 3" x 08" DiaSharp® Stone, 220x for $52.00
- 4" x 10" DiaSharp® Stone, 325x for $89.00

Which one should I get in order to lap them? Why?


Thanks
Cheers
Christophe