Craftpro Honing Guide.Ensure Correct Angle Is Maintained On Bevel Edge Chisels And Plane Irons When Used With Diamond Whetstone. Roller With Alloy Body Which Self-Centre Clamps Bevel Edge Chisels From 1/4 Inch (6.35Mm) To 1-1/4 (32Mm) And Plane Irons Up To 2- 9/16 Inch (65Mm) Wide.The Setting Device Is Marked For 25 Degree And 35 Degree Angles. Positive Location For Roller And Blade. Adjustable Stop For Setting Blade Angle. Use With 63Mm (2 1/2 Inch) Wide X 178Mm (7 Inch) Long Bench Stones Or Workshop Stones.Not For Use With Firmer Chisels Or Short Blade (Butt) Chisels.PTDTREDIRCRDWSHG