Knife Sharpening Guide Clip
The Sharpening Guide Clip (or Angle) helps to maintain the same sharpening angle while sharpening your knife, as seen on the product pictures (with the ZDP-189 Santoku Black knife). The purpose of the soft plastic on the inner side of the clip is to prevent the blade from getting damaged, while a special ceramic cover enables smooth sliding on the whetstone without damaging it.
This guide clip is suitable for blades of 3.5-4.5cm (1.4"-1.8") of width. For such blades, a clip will hold an edge of approximately 16°, an angle at which Japanese knives should be sharpened at.
Guide clip can also be used on non-Japanese knives, but the edge will be a bit more sensitive since knives from softer steels (like German/French knives, <60 HRC) should be sharpened at a slightly wider angle (around 20°).