DIAMOND BUR - DISC
The abrasive properties of Diamond bonded to the tool ensure fast, easy action & long durability. Used for engraving, drilling, cutting, cleaning castings, etc. Always run Diamond Burs & Diamond Drills at a slower speed (max. 3,000 rpm) and keep up constant lubrication to avoid build up of heat, which can damage the coating of diamonds on the bur. All burs have a 2.37mm shaft diameter.