Please do not expose it to impact, as this may cause damage. Size: 204 x 65 x 7 mm S&W K/L FRAME TACTICAL DIAMONDS BLACK RED SQ [Use] Sharpening blade from household knives to carbide alloys Features: Diamond whetstone that can sharpen hard metals such as ceramic knives and carbide metals that were not possible with conventional whetstones. Sharpen hard knives such as ceramic knives, carbide metals, etc. REDUCED - SK-11 150/600 Grit Diamond Ceramic Lapping Product Summary: Sk11-sided Diamond Whetstone # 150 / # 600. From SK. 4.2 out of 5 stars, 925 ratings. Customer reviews. Price. One-time purchase When it gets clogged in your eyes, please use a brush and wash it with detergent. After washing with water, wipe off the moisture and allow it to dry thoroughly before storing. Comes with a non slip mat. 150/600 Grit Sharpening SK11 Double Sided Diamond Whetstone #400#1000 8.0 X Oman SK11 Double Sided Sharpening Stone For Hard Metals Ideal for sharpening kitchen knives, drills, planers, etc.