Llyn Idwal stones should be used with one of these lubricants:

to avoid damage of the jaws

All Gokumyo stones are 5-6 mm thick

and is very fast on slurry

venev orion series resin cbn for edge pro new-variants Llyn Idwal stones should beVenev Orion Series Resin CBN Series is the first CBN product developed by Venev Industrial Diamonds. Venev Orion ('Orion Cubed') is made in Edge Pro form factor and is used for sharpening knives on Hapstone, TSProf, and all Edge Pro compatible guided sharpening systems. CBN (Cubic Boron Nitride) is the second hardest material after diamond. Venev Orion consists of a 3mm thick CBN bearing plate mounted on an Edge Pro aluminum base. The CBN bearing