Edenta Blue Diamond Medium Polish Round Knife Edge Wheel 25 x 2mm. The Edenta Swiss 3001HP Ceragloss Blue Wheel is a medium-grit, rubber-bonded diamond polishing wheel designed for precision work on hard metals. Mounted on a 3/32" mandrel, this 25mm x 2mm wheel delivers superior durability and performance using a diamond-impregnated compound that outlasts conventional abrasives. Ideal for carbide, titanium, platinum, and HSS gravers, this wheel is a favorite among professional engravers and diamond setters for keeping tools polished and performance-ready—without the need for a full diamond power hone system. The Ceragloss Blue wheel is best used for refined shaping and smoothing, and it pairs perfectly with the Ceragloss Yellow wheel (super-fine grit) for final high-polish finishing. The advanced Swiss-made bonding agent minimizes heat buildup, allowing extended use under light pressure.