NSK Kyokuha Diamond 400 Stone Diamond Stones and the saya that come

and the saya that come with these are normal saya instead of lacquered saya

Handle to Tip Length: 190mm

making them pretty small and maneuverable

I use this bridge together with my stone holder

The blue super steel takes a great edge and holds it for a very long time

NSK Kyokuha Diamond 400 Stone Diamond Stones and the saya that comeProduct Description Detailed Specs Measurements The Kyokuha Diamond 400 is a solid coarse stone. Unlike diamond plates, these stones are constructed in a manner more similar to normal waterstones. The top ~5mm of the stone is composed of a hard binding agent with diamond abrasive mixed in. This is then attached to a taller base, such that the whole item together is about the same size as many of the other stones we sell. Unlike some diamond stones