The clever design offers excellent sharpening performance, portability, convenience and versatility. The ABS folding handles protect the diamond surfaces when the sharpener is in your toolbox or pocket. The sharpening surfaces comprise a 100mm x 20mm stainless steel plate with diamonds permanently embedded in nickel plating. On one side is a 400 grit diamond abrasive and on the other a 600 grit. The coarser side cuts fast, forming the edge; the finer side refines and hones. This double-sided folding sharpener will prove invaluable around the home, in the workshop or toolbox, for garden tools, outdoor activities etc. Use the sharpener wet or dry, simply wipe clean when you’re finished, designed to give long and effective service.