Grit Level: #600. This grit is coarse enough to quickly remove small nicks and reset a dull edge, yet fine enough to leave a consistent finish that can be easily refined by a 1000 grit stone. Stone Type: This model is primarily sold as an Oil Stone, meaning it is designed to be used with honing oil rather than water. Dimensions: The standard full-size version is 205 x 50 x 25 mm. A smaller pocket-sized version measuring 115 x 38 x 16 mm is also common....