This is a porous, high-friability stone. It needs a short soak before using and less effort to get it to cut steel. This stone builds up a quick slurry and creates a nice even finish with a nice contrast between soft and hard steel. Since it has such high abrasive concentration and friability, this stone also works well with highly abrasion resistant knife steels such as HAP40, ZDP-189, CPM-M4, etc.
Specifications • Material: Synthetic stone • Grit: #320 - SKU: 98760 #1000 - SKU: 98759 • Type: Soaking • Dimensions: 8.9" (22.5cm) x 3.5" (9cm) x 2.4" (6cm) • Comes with a black rubber holder and a nagura buffer stone