Diamond Pocket Sharpener. Description. Very handy & practical, ideal for household, hobby & profession. Features. Flat/semi-circle cross section. Integrated groove with a fine diamond coating for sharpening fine tips. Protective cap with pocket clip. Size as that of a pen, always close at h&. Grain
Size: Average K400. Technical data. Length 160 mm. Sanding area (&732; x L) 4 x 65 mm.